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 24 - Jul 29

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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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4.7 ★★★★★
Based on 6 reviews
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Copper Fox
Lexington, US
★★★★★ 4
Close...but not quite the length.
Size: XL (16 in), Style: 2 Knot Rope Bone, Size: XL (16 in), Style: 2 Knot Rope Bone
I will admit, I thought their picture was off, because when I saw 16" in the title I was expecting the distance between the knots to be 16 inches in length. So if you're looking for a good length tug-of-war rope for a medium to large dog, look somewhere else. I'm not returning it, it's good quality cotton rope asides that. My dog needs a new toy and cotton ones are harder to find. Next time I'm going to their amazon store directly to look for what I wanted though. I will buy from them again, I like the quality and the fact that, for once, cotton is actually cotton.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2025
B
Verified Purchase
Brigette Ritchie
Lake Worth, US
★★★★★ 5
Great toy
Size: Small (9 in), Style: 2 Knot Rope Bone
I got this because my puppy chews through the other kinds of rope toys. This one is laying though. Only thing is, she's eating off the loose strings. Lol So she's pooping strings all the time
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
J
Verified Purchase
Jeffrey T DeLapp
Louisville, US
★★★★★ 5
The strings on the end are super engaging and the rope itself holds up really well
Size: Small (9 in), Style: 2 Knot Rope Bone
Super cost effective way to redirect chewing!! Our 4 month old corgi quickly made this is favorite toy. He loves the strings on the side and tugs on it endlessly, and the main rope was pretty firm at first but has softened up while maintaining its strength. Highly recommend as an interactive toy or just something for your dog to chew on their own so you can take some time to chill on your own!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 25, 2024
J
Verified Purchase
Julie
Phoenix, US
★★★★★ 3
Not for aggressive chewers!
Size: Large (14 in), Style: 2 Knot Rope Bone
At first glance, this rope toy seemed sturdy and well made. However, within an hour of my Vizsla chewing on it, she had already bitten off and unfortunately swallowed several of the fringes. The center of the rope also began to unravel. This toy may be suitable for smaller dogs or those that aren’t aggressive chewers, but I wouldn’t recommend it for large dogs or heavy chewers. Additionally, while it may measure 14 inches before being knotted at the ends, the total length is shorter than advertised.
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Reviewed in the United States on April 5, 2026
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Verified Purchase
BErickson
San Leandro, US
★★★★★ 5
Two knots, Not 3…
Size: Large (14 in), Style: 2 Knot Rope Bone
Been subscribed & saving on 3 knot version for years. My dogs gnaw through the center knot and they quickly unravel. This 2 knot version seems to last much longer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 19, 2025

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