High Quality: The office chair wheels are durable, lightweight and have a high load capacity (up to 450kg). Hard floors are coated with high quality polyurethane - this provides protection against floor damage and marks and saves money on expensive floor repairs. Quiet and Non-Slip: Double wheels are perfect for reducing stress. This gives you stability and makes steering easier than with a single wheel. The high-quality rubber wheels on the office chair are quiet and glide smoothly. Even if you work at night or play games, you don't have to worry about disturbing others, so you can focus on your work. General Application: The office chair can be used for tile, parquet, laminate, concrete or vinyl floors. These 11mm x 22mm high quality wheels can be fitted to a wide range of chairs, such as luxury leather chairs, computer chairs, home offices and other office chairs. This is a . However, they are not suitable for use on chairs. Measure before purchasing. Easy Installation: No tools are required for installation, it can be done manually. Just take out the old office chair wheels and slide in the new wheels, they are already assembled. It doesn't even take a cup of coffee for your chair to be revived. Because the whole process only takes 5 minutes. Colour: Grey+BlackMaterial: PlasticPackage Contents: 5 x Chair WheelsOnly the above package contents, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3cm._RYI