The compact Ulanzi Quick Release System consists of 4 elements: a plate that is attached to cameras and other devices via a 1/4" screw.
a mounting base (clamp) that is attached via a 1/4" threaded hole a tripod, ball head or stabilizer.
a strap clamp that generally attaches to the backpack strap;
a GoPro plate that can be attached to the GoPro and another action camera.

Key Features:

1. Fast. Attach one to all your cameras to quickly mount and replace cameras and minimize downtime.
2. Secure. Two safety stop grooves allow the use of plates with safety screws to prevent the plates from accidentally slipping out of the clamp.
Stable. The non-slip base on the camera can well prevent the camera from slipping or rotating.
3. Lightweight and powerful. The basic device weighs about 50 g and can hold up to 50 kg.
Several choices. You can choose the basic set with multiple plates to move your devices quickly, or a strap clamp set if you need to shoot outside, or a GoPro plate if you use a GoPro.