... roller skate,good quality inline skate,high speed inline skate. 1:Boot,soft boot with PVC leather&mesh,mixed foam inside, velvet with 3mm F324&good quality ... EVA.2:Hardware,Toecap-high impact PU,cuff-high impact PP,Chassis-Aluminium 2piece chassis.3:Wheel,PU casted wheel 64*24mm 80A. ... PP wheel core.4:Bearing, ...