Hollyland Spares - Crab Clamp (for Mars & Cosmos Series)
SKU: 72979736809

Hollyland Spares - Crab Clamp (for Mars & Cosmos Series)

Sale price$190.96 Regular price$212.18
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

Hollyland Spares - Crab Clamp (for Mars & Cosmos Series)The Hollyland Crab Clamp is an official heavy duty OEM grip utility accessory engineered to mount and secure Mars and Cosmo series wireless video transmitters, receivers, and field monitors onto standard production support hardware. In dynamic shooting environmentslike tracking vehicle mounts, grid pipes, heavy C stands, or tripod legsstandard cold shoe adapters lack the structural clamping force needed to hold heavy gear securely. The heavy duty crab

The Hollyland Crab Clamp is an official heavy-duty OEM grip utility accessory engineered to mount and secure Mars and Cosmo series wireless video transmitters, receivers, and field monitors onto standard production support hardware.

In dynamic shooting environments—like tracking vehicle mounts, grid pipes, heavy C-stands, or tripod legs—standard cold shoe adapters lack the structural clamping force needed to hold heavy gear securely. The heavy-duty crab clamp serves as an industrial all-metal vice, allowing camera assistants and grips to firmly lock premium video transmitters onto almost any structural surface with confidence.

Core Structural & Grip Features

  • High-Torque T-Bar Locking Lever: Built with an ergonomic metal T-handle screw assembly. This large handle provides excellent physical leverage, letting you crank down the clamp to achieve a rock-solid, vibration-proof grip by hand without requiring extra tools.

  • Dual Threaded Accessory Mounting Ports: The chassis features integrated, reinforced 1/4"-20 and 3/8"-16 female threads. This lets you mount industry-standard friction articulating magic arms, continuous power blocks, or standard Hollyland shoe studs directly onto the clamp housing.

  • Textured Non-Slip Rubber V-Groove Jaws: The interior gripping surfaces are lined with high-density, texturized rubber padding molded into a sharp V-groove channel. This design maximizes surface contact, preventing the clamp from twisting or slipping out of place when locked onto smooth, polished metal speed-rails or C-stand arms.

  • Massive Jaw Clamping Range: Capable of opening wide to slide onto bulky structural square beams or thick pipe columns, while still closing down tightly enough to bite onto thin sheet metal brackets, lighting pins, or stabilizer handle tubes.

System Interoperability

This universal mechanical grip tool interfaces with any professional hardware using standard photography threads, and is explicitly matched with:

  • Hollyland Wireless Ecosystems: Supports the physical weight of the Mars 300 Pro, Mars 400S Pro, Mars 4K, Cosmo C1, and the Mars M1 / M1 Enhanced wireless transceiver monitors.

  • Production Support Rigging: Clamps securely onto industry-standard $5/8$-inch ($16\text{mm}$) baby pins, C-stand extension arms, camera crane tubes, tripod legs, motorized gimbal handles, and studio lighting grid pipes.

Technical Specifications Matrix

Feature Specification
Official Product Classification OEM Camera Support and Production Grip Infrastructure Spares
Integrated Anchor Interfaces 1 × 1/4"-20 Female Thread & 1 × 3/8"-16 Female Thread
Jaw Grip Type Profile V-Groove Configuration with Textured Anti-Slip Rubber Inserts
Chassis Build Material High-Tensile Die-Cast Aluminum Alloy & Hardened Steel Components
Color Configuration Profile Production Matte Black with Silver Steel Hardware Accents

On-Set Mechanical Rigging Best Practice: When mounting your wireless video transmitter onto a high-vibration environment—such as a car-to-car tracking rig or a chase vehicle—never mount the crab clamp directly to the thin outer skin or fragile cosmetic trim of the vehicle. Always anchor the clamp onto a structural metal frame point, solid bumper bar, or heavy tubular roof rail. Once the clamp is cranked hand-tight, thread a steel safety cable through the cage of your transmitter and loop it tightly around the main support structure to serve as a secondary fail-safe backup.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 72979736809

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4.2 ★★★★★
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Graham Collins
Lake Worth, US
★★★★★ 5
Best frisbees I’ve found for an active dog
Pattern Name: Assorted, Size: 9" Pack of 5, Pattern Name: Assorted, Size: 9" Pack of 5
My dog is an ACD/Border Collie mix, so he is absolutely obsessed with anything that flies or moves fast. We’ve gone through a lot of frisbees over the years, and these are the ones I keep coming back to. They fly really well once you get used to them, and they’re soft enough that I don’t worry about his teeth or mouth the way I do with harder plastic discs. They also hold up surprisingly well considering how rough he is with toys. Mine get used constantly in the yard, at parks, and near the water, and they’ve lasted much longer than most dog frisbees I’ve tried. I’ve bought several packs over the years, but honestly most of the damage has happened because my dog likes to lay down and chew on them after playing fetch. If I leave one sitting on the ground too long, he’ll eventually destroy it. That’s not really the toy’s fault though. In some ways I actually like that they’re soft and flexible enough for him to comfortably carry around and chew on a little. Another thing I appreciate is that they’re washable. After a muddy or slobbery session I can just rinse them off and they’re good to go again. For an active dog that loves chase and fetch games, these have been excellent.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
B
Verified Purchase
bill
Belleville, US
★★★★★ 5
Very durable
Pattern Name: Assorted, Size: Pack of 2
Awesome frisbee. Even if you don't have a dog! It's actually just nice to play with as people! Flies great. Left alone a dog with l can destroy it. It's not a chew toy, but it is a great game of fetch. Perfect size for medium and large dogs, plenty durable.
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Reviewed in the United States on March 21, 2026
B
Verified Purchase
BillyD
Whiting, US
★★★★★ 5
Very durable and amazingly fun
Pattern Name: Assorted, Size: Pack of 2
My dog loves frisbees, but now this is the only one I’ll ever buy again! If you’ve ever had a dog frisbees you know that some dogs can eat/chew-up a frisbee in literally minutes. Not this one, no way! I’ve bought several of these because I keep one in my truck, one on my boat, one for the backyard, and one just for the dog-park (can you say “community drool”? I take these everywhere (see videos) and every single dog that gets ahold of it loves it. As a matter of fact the only problem I’ve ever had with it is when I take my dog to the dog park all the other dogs fight over this frisbee. As far as quality it’s tough as nails, sure if my dog sat and gnawed on it for hours he might eventually tear it up but it would take a very long time and I would see him chewing it up. My dog and all the other dogs at the dog park will gnaw and chew on it and not one dog (from labs to retrievers to pitbulls to Rottweilers to even a malinois, a German Shepard and a massive cane corso to a little cur of a dog) not one has torn it up, and they ALL play tug of war with it. It’s great for teaching young and old dogs how to catch because it is soft enough not to bounce out of their mouth and they can catch it with a good grip. The best thing ever: it’s malleable and can be easily put back into a round shape even after heavy pulling. It floats on the water perfectly and will not sink no matter how wet with water (or drool!). On top of that it’s very light yet is easy to throw in even heavy wind, and as a frisbee guy for decades when I say it throws good, it’s pretty darn accurate whether wet or dry. Personally I have found I like the pink one the best (not the pink swirly one, even though it’s fine I like the black edging on the others as they seem tougher and more solid for throwing). The solid pink ones are easier to see in water, grass, dirt, etc. I have bought 5 of these so far, not because they get trashed or fall apart, but like I said it’s because I have one for every purpose. Highly recommend the solid pink as best color wise.
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Reviewed in the United States on July 30, 2025
M
Verified Purchase
Michael A Shaffer
Draper, US
★★★★★ 4
Great frisbee for our golden doodle
Pattern Name: Assorted, Size: 9" Pack of 5
Love the product. Our golden doodle can chase these all day long. They are light enough and easy on him to catch them and they fly well. Only complaint is I wish they were a little cheaper. He does go through them
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026
E
Verified Purchase
E. Johnson
Charlottesville, US
★★★★★ 5
Amazing frisbees for dogs!
Pattern Name: Assorted, Size: Pack of 2
These are the best frisbees for dogs. They hold up well but do fade over time if left in the sun. Our border collie mix is an avid frisbee guy and these are his favorite. The float in water well and last for quite a while. He’s not a chewer so I can’t speak to the durability with chewing. I buy a couple every year when his old ones get faded and gross, otherwise we would continue to use these for over a year!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026

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