The Hot Shoe Adapter 3/8″ to 1/4″ is part of the CoolArm11, and may be used to mount an accessory with 1/4″ socket to the hot shoe of a camera.
The thread is 3/8″ to 1/4″: the thread top part is 1/4″, the bottom part is 3/8″.
2x Shoe Mount Adapter
Material: Aluminum Alloy
Net Weight: 60g