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 ShelfMaterial: Aluminum alloycolour: BlackPackage Contents:1 x Rear shelf2 x side support2 x Small side support6 x Screw set (18 small accessories)10 x 4 x Support side frame2 x Rear side supportOnly 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.