Made of high quality aluminium. anodic treatment, resistance and wear resistance. Build-in 3 , easy to find correct direction no matter horizontal or vertical . Fast loading base with antiskid lock function, protect your camera from falling off. 50mm(1.97 inch) in length. Adapter jaws accept plates from 38-42mm wide. Compatible with any Arca style plate such as, , Jobu Design, Arca , Kirk Enterprises, Markins, etc. Material: Aluminum alloy Product size: 7.8 x 5 x 2.0cm / 3.1 x 2.0 x 0.8in Weight: 475g colour: black Package Contents: 5 x Yuntai plate holder 5 x Wrench, 5 x screw 5 x screw adapter Only the above package content, other products are not included. Note: Light reflection 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.