General description Our 3/8 inch x 7/8 inch (10x22mm) office chair wheels are designed to fit a variety of chairs, ensuring smooth rotation and easy sliding. Made from high-quality industrial-grade stainless steel and corrosion-resistant polyurethane, these heavy-duty casters can support loads of up to 650 pounds, making them a reliable choice for office, computer, and gaming chairs. Technical specifications Stem size: 3/8 inch x 7/8 inch (10x22mm) Load capacity: up to 650 pounds Material: stainless steel and polyurethane Color: black Measurement allowed error: +/- 1-3cm Usage These chair wheels provide a smooth and silent experience, allowing you to work, learn, or play without distractions. They are suitable for all types of flooring, including wood, hardwood, laminate, vinyl, tiles, and carpets. However, please note that high pile carpets may not roll as smoothly as low pile carpets. Other information Package Contents: 5 x Chair Wheels Note: Light reflection and different displays