Upgrade your cart mobility with these heavy-duty grip ring stem casters, engineered for smooth rolling, strong load support, and long-lasting durability. Each caster features a 1-3/8 inch x 7/16 inch grip ring stem with 19/32 inch OD sleeves, ensuring a secure, wobble-free fit on most commercial-grade service carts. Made with non-marking rubber, precision ball bearings, and reinforced steel housings, these casters glide effortlessly on tile, concrete, hardwood, or epoxy floors without leaving marks or scratches. The wheels are available in 3-inch and 4-inch options, and you may choose models with or without a brake, making them suitable for both mobile and fixed-position use. These casters are ideal for a wide range of applications, including: Service Utility Carts Mop Bucket Trolleys Cleaning Carts & Janitorial Carts Maintenance carts, warehouse trolleys, hotel service carts, and more Whether you need a smooth-rolling replacement wheel or a reliable upgrade for commercial cleaning and service equipment, these casters deliver dependable performance for daily heavy use.