Aluminum structure (except for the front fork and brake); Innovative folding mechanism; Practical - all folded to dimensions: length 81cm x height 32cm x width 12.5cm; Rubber non-slip steering handle; Non-slip platform surface; Front fork and brake made of steel; High-quality, large wheels 205 mm in diameter, PU High Rebound, made of cast polyurethane, 82A; Bearings ABEC-7; Rear wheel friction brake (steel); Parking foot