This  10" x 3" Solid Elastomer Swivel Caster consists of pressed steel, with ball bearings in the swivel head, ball protection by the special top plate and ball disc design. The special dynamic riveting process of the swivel head results in the slightest swivel head play and serene rolling nature with an expanded service life managed by the solidification of the ball race grooves. This caster includes very high operational comfort through the especially thick, elastic tread, low-noise operation, low rolling resistance, excellent floor conservation, very high chafting resistance, high cut and tear propagation resistance, very good chemical linkage with the wheel center.