Tires made from high quality rubber with inflatable tube mounted to a durable 2 piece bolt together steel hub assembly. Standard with zinc plated finish. Zinc plated SPECIFICATIONS - 2 5/8 x 3 slotted to 3 x 3 5/8 bolt hole pattern, 4 x 4 1/2 overall plate size, 7 1/2" overall height, 275 lbs load capacity INDUSTRIES AND APPLICATIONS - For use on carts and platform trucks in commercial and institutional environments where floor potection, ease of movement and quiet operation are required. MORE INFORMATION - Don’t see the caster you are looking for ? Call us or message us by clicking the Access Casters link under Add to Cart button.