Suitable for chairs - please rest that our 3/8 inch x 7/8 inch(10x22mm) handle office chair wheels are perfect for your for chair or other chairs with related handle sizes. Upgraded design ensures easier rotation and smooth sliding on for office chairs, office chairs, computer chairs, and gaming chairs. We have your last high-quality office chair wheels - our heavy-duty office chair casters are made of high-quality industrial grade stainless steel and - polyurethane materials, which can easily achieve 360 rolling and have a long service life. -duty design can withstand loads of up to 650 pounds. Smooth rolling, no noise - just pull out the squeaky and shaky casters and push in our new chair casters to upgrade your old . In just 2-5 minutes, our rotating casters provide you with a smooth sliding and completely silent working, learning, or playing environment. No need for office chair cushions - our chair wheels and casters never scratch, stain, or leave marks on the floor. You can enjoy a careless and safe slide on all types of flooring - wood, hardwood, laminate, vinyl, tiles, or carpets. Note: High pile carpets usually roll up less smoothly than low pile carpets. Color: black Material: rubber Package Contents: 5 x Chair Wheels Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.