Specification: Boot: hard Shell: PP Insole: breathable membrane, VELVET+EVA, MESH net Inner boot length (mm): 185-215 Snap: two-section snap fastener, Velcro strap, lacing Skate skid: stainless steel Roller skate skid: aluminum Wheels: PU 64mm/82A (S) PU 70mm/82A (M) PU 72mm/82A (L) Bearings: ABEC 7 Size adjustment button Remarks: Not intended for commercial use Certifications, standards: PN-EN 13843:2009 Warranty 24 months Importer: Abisal Ltd. | Poland | 41-807 Zabrze | Pyskowicka Street 17 | e-mail: abisal@abisal.pl Abisal Ltd.. declares that the products sold by the company are safe and meet the requirements contained in the Act on General Product Safety of December 12, 2003. (Journal of Laws of December 31, 2003)