Product description Powerslide S4 in-line skates Excellent Urban Freestyle Roller Skates For Demanding. Great for slalom. Fiberglass Reinforced Composite Skeleton PU shoe Nanoleather Beta Alu Frame Chassis Frame length 219mm Powerslide Spinner wheels Wheel size 72mm Hardness of wheels 85A Powerslide Twincam ILQ9 Classic Bearings Videos: