• Size-adjustable to 4 sizes by means of push button mechanism
• Quick-lock fastening
• Outer shells: high-density shock-absorbing PE
• Inner shoe: comfortable polyester, EVA and pearl foam
• Chassis: high-impact PP
• Wheels: PU casted 82A, 70 x 24 mm
• Bearings: sealed ABEC 5 carbon
• Brake: TPR 85A
• Tools: 2 Allen keys included