Allows you to mount two cameras on a tripod 20.5cm in length With 1/4 inch screw for DSLR camera; With 3/8 inch screw to mount on tripod. Note: Camera and tripod are NOT included. Weight: 2.7 oz colour:black Material:Aluminum alloy size:205*30mm Package Contents: 1 * Dual Camera Holder Mount Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.