【High Load-Bearing Nail】Nylon material and PU base make rolling bell floors have higher load-bearing capacity, thick and non-slip, sturdy and durable, our bell glides replacement can replace the cheap wheelchair. 【360 Degree Rotation and Durable】The wheelbase diameter is 52mm, the plunger gauge is 11 * 22mm, the installation height is 35mm, and the size of the felt pad is 38 * 3mm. The office chair wheel stop is small in size, but sturdy, easy to use, and still can allow the chair to rotate 360 degrees. 【Felt Pads Included for Noise Reduction and Scratch Resistance】To prevent scratches on the floor and that there is no noise when moving the chair, we are equipped with protective felt pads of our office chair casters. This way, whether you are on a laminate, parquet or hardwood floor, you do not need to put carpeting underneath. 【High Adaptable Appearance and Sturdy】The legs of the chairs glide castors are made of high quality solid nylon, thick and durable and very resistant to load. The black top and the gray bottom can also easily match the chair, which is also good from an aesthetic point of view. 【Fits to Many Kinds of Chairs】Sliding stop office chair height design is similar to most standard chair casters, suitable for most stationary desks or desks and chairs, saving money and protecting the ground., Weight: 0.661386786 pounds, Manufacturer: FOROREH