Universal: The desk chair bell glider will fit most desk chairs, school chairs, gaming chairs with a stern diameter, can convert any sliding desk chair or table and chair into a fixed type. High Quality Material: These office chair glides are made of high quality stainless steel and rubber, sturdy and durable, and have strong load-bearing capacity. The bottom is non-slip, not afraid of the chair slipping. Soft Rubber Bottom: The soft rubber sole can protect your floor from damage without using felt mats, and it can also reduce noise. Fixed Caster Size: Bottom diameter 5cm/1.96inch, height 42cm/16.5inch, top width 0.43inch, similar to most small chair casters. Tips : Please measure the chair size carefully before purchasing. Widely Used: These replacement chair wheel glides are very suitable for home or business offices, and can be used as replacement legs or installed in wooden furniture legs. FEATURES: 1. Stainless steel and rubber material, strong bearing capacity, non-slip; 2. Universal size, suitable for most chairs; 3. Easy Installation: Use the same mounting rods as most small chair casters to attach to the base of the chair. ; SPECIFICATION: Material: Stainless steel, rubber; Color: silver; Quantity: 5 pieces Note: 1. Due to the influence of light and display, the color of the actual product is slightly different from the product in the photo. 2.The above dimensions are measured manually, please allow slight errors dimensional. 3. Please measure your size before purchasing. Package includes: 5*Castors