Scope of application: woodworking desktop Spare Parts, and easy to install. Fine workmanship and perfect style. size: 19mm Material: Aluminum alloy colour: As shown Package Contents: 2 x Table Track Clamp 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.