100% new and high quality. Fits road bike,mountain bike,fat bike,etc. Quick release mount at seat post,and easy to install. This carrier rack is made of quality aluminum alloy,and . Can hold enough daily necessities and other essential elements. and versatile rack that mounts to the back of your bicycle to help you easily transport for bags,panniers,backpacks,cargo,baskets,and more. Size:Contraction length 35-50cm* width 12cm System:Disc Brake Type:Car Racks Colour:Black Material:aluminum alloy Package Contents: 1* Rear Pannier Rack 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.