Specification: Frame: Aluminum, one piece, die-cast Bearings: ABEC7 Shoe: semi-soft Wheels: PU 80 x 24mm/82A (size 35-38) Insert: Material EVA Mesh Material VELVET high-density foam Foot length (mm) : 220-240 mm Clasp: manual buckle Velcro strap lacing Remarks: Not for commercial use 24 months warranty