1. Keeps tether cables connected and secured to camera2.Protects expensive camera ports from damage3.Multiple routing channels accept thick, medium or thin cables4.ARCA Style quick release plate allows fast camera to tripod ball head mountingTop Male Screw: 1/4inch (Fits most DSLR and Mirrorless cameras)Brand Name: Item Name: Tether Block with (Arca Style) Quick Release PlateFeatures: Keeps tether cables connected and secured to cameraFeatures 2: Protects expensive camera ports from damageFeatures 3: Multiple routing channels accept thick, medium or thin cablesItem Weight: 74gModel: Tether Tools Tether BLOCK ACAR QR Quick Release Platecolour:BlackMaterial:Aluminum alloysize:60 x 38 x 10mmPackage Contents:2 x Tether Block with (Arca Style) Quick Release PlateOnly the above package content, other products are not included.Note:Light 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.