colour: black Material: aluminum alloy size: 77x53MM Package Contents: 1 x conversion seat 1 x 3mm hex wrench 2 x gasket Only 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. QUICK TO INSTALL, EASY TO ADJUST! Mount on your bike in under one minute.You don't need to take the shifters brake levers or seatposts off, just clamp it on. With our plastic shims, you can mount them on nearly all tubular handlebars and seatposts. You can also rotate the upper part to make them fit your bike. SECURE AND STURDY! Quick release bottle cage maybe very convenient, but when you ride on a or want to ride fast, you may only want your water bottle stays firmly in place. Can be 360 degrees rotation, easy to install and remove. DESCRIPTIONS:Bracket turns 90 degrees to suit mounting position. SUPER AND GOOD LOOKING! Made from high quality aluminum alloy and CNC machined then heat treated. These products are and . With colorful anodized , these bottle cage mounts would definitely turn heads.