High quality: Office chair wheels are durable, lightweight, and have a high load capacity. The hard floor casters are coated with high-quality polyurethane, providing protection against floor damage and marks, helping to avoid costly floor repairs. Quiet and smooth: Double-wheel design helps reduce load and improves stability, making steering easier compared to single-wheel casters. The high-quality rubber wheels operate quietly and glide smoothly, allowing you to focus on work or gaming without disturbing others, even during nighttime use. General application: Suitable for use on tile, parquet, laminate, concrete, and vinyl floors. These 11mm x 22mm casters are compatible with a wide range of office chairs, including leather executive chairs, computer chairs, and home office seating. Easy installation: No tools required. Simply remove the old casters and insert the new wheels by hand. Installation takes only a few minutes, quickly restoring full functionality to your chair. Color: Gray + black Material: Plastic Package Contents: 5 x chair wheels Note: Light reflection and different display settings may cause slight variations in color between the product and the image. Measurement may vary by +/- 1-3 cm.