HIGH QUALITY DOUBLE LOCKING: Furniture casters made of non-marking polyurethane rubber, absorb shock and vibration. Ball bearing and double lock bring maximum loading capacity and safety. NOISELESS AND MUTESwivel caster surface is well made of soft material so as not to damage wooden floors. Quiet, good rubber grip without marking the floor and sturdy.Comes with a screwdriver. 360 DEGREE ROTATIONSwivel brake casters have a 360 degree rotatable design, the wheels spin and swivel easily, which makes each turn much easier and support the weight admirably well. SAFE AND RELIABLECastors with brake the lock on which blocks both the rotation of the wheel and also its direction, which allows excellent stability in locked mode and perfect maneuverability once on the wheels. WIDE VARIETY OF USE:These PU rubber swivel casters are ideal for a wide variety of uses, from DIY to industrial applications, home, schools, to garages, shops, carts and hospitals,Perfect casters for small equipment and small space furniture, including ottoman, coffee table, plant stands, shelves, shoe bins, bins toy storage, shopping carts, workbench, storage under the bed.