Special castors with lockable brakes for hard floors such as parquet, laminate, tile or stone floor High-quality skate design castors for hard floors. Based on the wheels of Inline-skates, they allow a smooth gliding on hard floors- without damaging the floor. In order to protect your high-quality parquet and laminate floors from scratches and other damage, we also recommend a floor protection mat. When choosing, please note correct pin diameter and ideally use the old rollers as a template. For best results when measuring, we recommend measuring the old roller using a set of callipers. tile or stone floor