Quiet and smooth operation: These office chair castors provide silent movement on floors thanks to the rubber and silicone. They rotate 360 degrees for easy, bidirectional maneuverability and comfortable, precise control in any direction. Floor protection and versatility: The rubber surface protects parquet, laminate, tiles and carpets from scratches and mechanical damage even under heavy use. They are compatible with a variety of surfaces, helping maintain the floor's safety and appearance in offices, homes and other interiors. Robust and durable construction: Made from steel, PU, rubber and silicone, the wheels are built for everyday stresses and intensive use. The set of 5 handles loads with stability and long term protection across different surfaces. Easy to install and universal fit: A standard screw size of 10 mm x 22 mm allows quick mounting without extra tools, so old worn casters can be replaced easily. They fit most office and gaming chairs, ensuring stability and smooth movement from hard floors to carpets. Use scenarios Office chair on hard floors or tiles in quiet work environments where noise must be minimized. Library or study room where silent movement and floor protection are important. Gaming or home desk chair on carpet or mixed surfaces, offering stable, smooth mobility.