Key Features - SmallRig 2164: 1. Adjusted and tightened with a wing nut at any angle. 2. Clamps accessories easily and conveniently. 3. Attaches accessories with a diameter of up to 40 mm. 4. Maximum load <1.5 kg. The SmallRig 2164 Multi-Functional Crab-Shaped Clamp with Ballhead Arm includes the Universal Magic Arm with the small ballhead Magic Arm 2157 and the Super Clamp 735. On the other hand, you can attach a monitor or video light while clamping accessories with a diameter of less than 40mm, such as DJI Stabilizer, Freefly Stabilizer, Video C Stand, etc. It has a wing nut in the center for adjusting the angles and positions of your monitor or video light or other accessories. Designer: Jeff Rock Compatibility - SmallRig 2164: accessories with a diameter of 15mm-40mm The set includes - SmallRig 2164: 1 x Universal Arm 2163 1 x Super Clamp 735 Technical specifications - SmallRig 2164: ATTENTION DAMAGED BOX