camera clamp 2 pieces multifunctional double ball adapter with bottom clamp and standard 1 4 screw for camera, flash, tripod, dv monitor, led lights.

set of 2 large clamps maximum opening size about 43 mm standard 1 4 screw maximum load 2.5 kg width can be adjusted and used flexibly. the device can be rotated and you can adjust it 180 degrees to fit other demand scenarios. it has a wide range of uses.you can install it on a bicycle or motorcycle