Universal: The office chair bell glider will fit most office chairs, school chairs, gaming chairs with a stern diameter, can convert any sliding office 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 sliding. Soft Rubber Bottom: The soft rubber sole can protect your floor from damage without using a felt mat, and it can also reduce noise. Fixed Caster Wheels Size: Bottom diameter 5cm/1.96inch, height 42cm/16.5inch, top width 0.43inch, similar to most small chair casters. Tips: Please carefully measure the size of the chair before purchasing. Widely Used: These replacement chair wheel pads are very suitable for home or corporate offices, and can be used as replacement feet or installed in wooden furniture feet. FEATURES: 1. Stainless steel and rubber material, strong load-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 chair base. ; 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 picture. 2.The above dimensions are measured manually, please allow slight dimensional errors. 3. Please measure your size before purchasing. Package includes: 5*Casters