... aluminum alloy rim 3.Size: 16", 18", 20", 24" 4.Color; Red, blue. 16 inch children bicycle, unicycleModel No.: ... U-16A (16", Aluminum rim or stell rim) Features: ... length, steel + ABS 7)Tyre: rubber in color,16" size8) Saddle: Leather with spring 9) Seat post: ... FCL, 1432s/40' FCL, 1580pcs/40' HQ 16 inch children bicycle, Unicycle