Features: Sturdily built of mainly Aluminum alloy material, black coating; Optimal structure ensures strong support and positioning; Double support rods so as to optimize stable mount and safe loading; Quick release mount to post, and screw fix to frame for positioning; Product Name: Bicycle Rear Shelf Material: Aluminum alloy colour: Black Package Contents: 1 x Rear shelf 2 x side support 2 x Small side support 6 x Screw set (18 small accessories) 10 x 4 x Support side frame 2 x Rear side support 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.