4 In. Red Polyurethane Swivel Plate Caster With Locking Brake

4 in. Red Polyurethane Swivel Plate Caster, 350 lb capacity, locking, heavy-duty, strong, and smooth-glide, Made in the USA. Commonly used on heavy industrial carts, assembly line fixtures, and mobile equipment that requires frequent repositioning under load. Well-suited for warehouses, fabrication shops, and production areas where carts need to move smoothly between stations and lock securely during use. Also ideal for demanding DIY or commercial builds where durable, high-capacity mobility is needed across rough or high-traffic workspaces.