1. Unicycle with CE certificate 2.Steel rim or aluminum alloy rim 3.Size: ... , blue, chrome,etc U-18A (18", Double Aluminum rim ) Features: 1) Size: 18" 2) Materials: Double Aluminum rim, chromed frame (made from ... ' FCL, 1580pcs/40' HQ 18 inch Unicycle with support stand,Double Alum rim(CE certificate)