Swivel chair universal wheel, using PA nylon environmental protection material, metal bracket, strong load bearing, smooth and durable, no scratches, no noise, non-slip, does not hurt the floor. Durable and easy to install. Easy to move and make your life comfortable. 1.5in specifications: Material: Nylon Wheel diameter: 1.5in 38mm Wheel width: 0.7in 17mm Installation height: 2.1in 53mm Mounting rod size: 0.4x1in 11x25mm Load capacity: 120KG (4) Quantity: 4 2in specifications: Material: Nylon Wheel diameter: 2in 50mm Wheel width: 0.7in 17mm Installation height: 2.6in 65mm Mounting rod size: 0.4x1in 11x25mm Load capacity: 200KG (4) Quantity: 4 - Uses: Suitable for rolling work in offices, parquet floors, carpets, tiles, etc. , such as drawers, boxes, chairs, under-bed storage, shoe storage, furniture, workshops, industrial, warehousing, etc. prompt: 1. Please allow slight dimensional deviation and slight chromatic aberration, thank you for your understanding. 2. Welcome to our store! . 3.USE FOR MULTIPLE USES: These castor wheels are perfect for so many different uses. Use them for industrial shelving, storage units, toolboxes and work saw benches. You can use them around the home for furniture such as kitchen islands, desks, ottomans, toy shoe bins, outdoor planters, shelves, coffee tables, chairs, and cabinets. Additionally, use them for display exhibition equipment, flight instrument cases, dollies, speakers, and many different types of machinery equipment. Multi-purpose: widely used in office chairs, electrical products, furniture, home, display racks, logistics, machinery, sports, toys and other industries. Material: The office chair casters are made of soft PA nylon, which is wear-resistant and has strong impact resistance. The sliding is smooth and silent, leaving no traces or scratches. Beautiful and generous: These replacement wheels are not ordinary furniture accessories. They are unique and eye-catching. So you can transform any work chair or stool into a modern and unique piece of furniture. Features: 360-degree rotating casters are characterized by wear resistance, quietness, flexible rotation, strong carrying capacity, fashionable style and strong practicability.