XeloTech Hard floor castors

5-piece set of hard floor casters. Please determine the correct pin size down to the millimeter before purchasing. This will save you time and hassle. These casters have an 11 mm x 22 mm pin. (They do not fit NitroConcepts chairs). Protect your floor with our gentle yet highly durable polyurethane wheels for your office chair. Our smooth casters leave no dark or black marks on the flooring. Perfect for tiles, parquet, laminate, wood, marble, granite, stone, concrete, or vinyl floors. Glide completely silently on your office chair. Even in the evening while working from home, no one will be disturbed by your work. Perfect for gamers who enjoy playing at night. Suitable for any desk chair that supports 11 mm casters. These wheels will enhance your office chair with their unique and very modern design. The casters are unbraked.