Are you looking for professional and durable chair wheel casters for your office chair or computer chair? High strength and make these replacement casters an for office and home furnishings. The surface is simple and elegant, compact and convenient to install. Features -Color:Black -Material:Rubber, iron -Size:3.20X2.20X2.20cm/1.26X0.86X0.86in -The practical rubber feet effectively minimizes vibrations and noise, use them to protect the machine well. -Suitable for table, cabinet, and machine, such as air compressor and other machines. -The anti-shock and anti-slip design of the rubber feet ensures safety during use. -The installation and replacement of the rubber feet is easy, supports stability for lasing use. -Professional manufacturing and reliable workmanship, performance. Package list: 4 x rubber foot pads