1. Product function/: The product can be connected to a of quick-release plates, has a wide range of applications, and is highly practical. It can be connected to rail pipe , quick-release plates, cameras, batteries, handles, etc. 2. Features and selling points: The product is made of aluminum alloy and CNC-processed in one piece. It has multiple 1/4 and 3/8 threaded holes and is designed with Alai positioning holes. It has waist grooves both horizontally and vertically. 3. Aluminum alloy surface technology: The surface is anodized Colour:black Material:Aluminum alloy + stainless steel Size:about 99 x 50 x 10mm Package Contents: 1 x Switching Plate 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.