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SmallRig Crab-Shaped Super Clamp Kit with Ball Head Magic Arm

BH #SM3757B • MFR #3757B
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SmallRig Crab-Shaped Super Clamp Kit with Ball Head Magic Arm
Key Features
  • Clamp Mounts on Surface 0.6 to 2.6" Wide
  • Dual Ball Head Magic Arm & 1/4"-20 Screw
  • 1/4"-20 & 3/8"-16 Mounting Threads
  • 7.7 lb Load Capacity, Rubber Padding
Mount an accessory onto a surface, rod, or pipe with this Crab-Shaped Clamp with Ball Head Magic Arm from SmallRig. This mount features a crab clamp and an articulating magic arm. The durable aluminum and stainless steel clamp can support an accessory such as a light, monitor, or wireless gear weighing up to 7.7 lb using its multiple 1/4"-20 and 3/8"-16 threads.
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SmallRig 3757B Overview

Mount an accessory onto a surface, rod, or pipe with this Crab-Shaped Clamp with Ball Head Magic Arm from SmallRig. This mount features a crab clamp and an articulating magic arm. The durable aluminum and stainless steel clamp can support an accessory such as a light, monitor, or wireless gear weighing up to 7.7 lb using its multiple 1/4"-20 and 3/8"-16 threads.

The magic arm features ball heads on either side and 1/4"-20 screws to mount onto the clamp and an accessory. The clamp can fit around a surface, rod, pipe, stand, or stick with a thickness or diameter of 0.6 to 2.6", and it secures using a large thumb lever. The inside of the clamp is lined with silicone for a solid grip.

SmallRig 3757B Specs

Load Capacity
7.7 lb / 3.5 kg
Top Mount
1/4"-20 Male
Bottom Mount
Clamp
Jaw Opening
0.6 to 2.6" / 14 to 65 mm
Points of Articulation
2
Material of Construction
Aluminum, Stainless Steel
Maximum Length
6.6" / 167.4 mm
Width
3.5" / 89.8 mm
Depth
0.7" / 18 mm
Weight
7.2 oz / 205 g
Packaging Info
Package Weight
0.58 lb
Box Dimensions (LxWxH)
6.4 x 4.1 x 2.1"

SmallRig 3757B Reviews

Solid!

By Jack
Rated 4 out of 5
Date: 2025-11-10

Great Performance For Its Price. Basically All Metal Parts. Perfect Size For A Speedlight, Mobile Phone, Or Field Recorder. Locks Down Tight Enough To Support Every Object I've Put On Top Of It. Wish It Was A Little More Stable When Clamped To Narrow And Flat Surfaces (e.g., The Edge Of A Plywood Board) But At This Price Point I'm Satisfied With Its Performance. Seems Like It Will Hold Up Very Well For A Long Time.

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