NA14124 BLACK SIZE 40 NILS EXTREME INLINE SKATES 16-01-245. The NA14124 Nils Extreme inline skates are designed for recreational skating for beginners and intermediate skaters. Thanks to the use of high-quality materials, the boot is lightweight and durable, ensuring safety while skating, while the built-in ventilation system directly increases user comfort. It's worth noting that the NA14124 model features an aluminum frame and ABEC7 bearings for lower rolling resistance, meaning a faster ride. The rear brake ensures safety during use. Specification: Frame: aluminum Bearings: ABEC 7 Boot: Polypropylene, semi-soft, ventilated Wheels: PU 80x24 mm / 82 A Insole: Breathable membrane Material: Eva Velvet Mesh Mesh High-density foam 10 mm Fastening: Buckle Velcro strap Lacing Inner boot length: 258 mm Roller skates equipped with a brake.