The materials and configuration of main parts

1. Shoecover(upper): use permeability mesh fabrics, some of themleather fabric, with breathable holes, anti-slipcotton lining
2. Wheels: highwear-resistant transparent flexible poliyurethane(PU)materials
3. Bearing: carbonsteel high-speed bearings, ABEC-7
4. Boot:high-impact reinforced polypropylene (PP) material
5. Chassis: ppplastic
6. Brake: PVCwheelsBuckles(shoestied):use auto-locking and high-tensile buckling, polycarbonate(PC) and toughening polythylene (HDPE) for material

Features

1. Free to adjustthe size, take full accout of childrens growth,30-33#(S),34-37#(M), 38-41 (L#)scalable
2. High densitycomfort stretch lining retaining pin can be removedfree
3. Moisture proofmetallic ventilation holes, non-slip shoelaces
4. High strengthand durable support leggings