No more fear of scratches and smudges on light and sensitive floors, such as parquet. Thanks to the soft and high-quality polyurethane surface of the wheels, these issues are a thing of the past – your floor protection mat is no longer needed. The 50 mm hard floor wheels feature load-dependent brakes that only engage when not under load, preventing unwanted rolling. When loaded, the wheels roll smoothly without any annoying braking resistance. The wheels can be easily replaced without tools: simply pull out the old wheels from the base and insert the new AMSTYLE wheels – super convenient and easy. With a standard size of 11 mm, the silver metal pins fit almost any office chair. This is a set of 5.