Material Polyurethane polymer wheels designed for wear resistance and elasticity to support a durable, responsive skating experience. Bearings and performance Stable carbon steel bearings provide a smooth ride with reduced noise, suitable for both indoor and outdoor use. Shock absorption elastic PU composition effectively absorbs shocks, making the wheels comfortable on a variety of surfaces such as asphalt roads and park paths. Hardness options Available hardness levels: 82A, 90A, 92A, 95A to match different skating styles and surface preferences. Key benefits Durable, longlasting material and construction for reliable performance. Quiet, smooth operation suitable for indoor rinks and outdoor environments. Versatile for different surfaces due to effective shock absorption and multiple hardness options. Compatibility and use Designed to fit standard roller skate setups and provide consistent performance across common indoor and outdoor environments. Use scenarios Urban commuting on paved streets where shock absorption improves comfort over cracks and seams. Recreation skating in parks and on boardwalks to balance stability and grip. Indoor skating sessions or practice on rinks, taking advantage of lower noise and smooth bearings.