Specification:Frame: Aluminum, One-piece CNC, 3.4mm Shell material: PP, glass fiber reinforced and nylon Bearings: ABEC9 Shoe: semi-soft with a ventilation system thermoformable breathable membrane velvet material EVA material MESH synthetic leather profiled insert Insole length (mm): 280 Wheels: PU100mm/80 A Clasp: Buckle Velcro strap LacingRemarks: Not for commercial use 24 months warranty 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)