Heavy Duty Casters: Each 5 inch caster can support 1000 pounds,and a set of four casters can support 40000 pounds,The core structure utilizes a dual strength combination of a thickened metal frame and a high strength metal core,significantly enhancing overall load bearing strength and deformation resistance,ensuring stable handling of heavy loads Polyurethane Casters: Crafted from red polyurethane,these low noise casters significantly reduce friction during movement,creating a quieter work environment or living space,The material is both soft and scratch resistant,effectively preventing scratches and wear on floors,The scratch resistant structure provides excellent wear resistance,extending the product's lifespan and meeting the demands of long term,frequent,heavy duty loads Industrial Casters: JUCACE industrial casters feature dual safety brakes that simultaneously lock the wheel and top plate with one click,ensuring secure and easy operation,As heavy duty models,they can directly replace most casters on the market for tools,workbenches,luggage and furniture,providing greater stability and versatility for moving heavy objects DIY Assembly Design: This product features a simple,easy to follow assembly process,eliminating the need for complex tools or specialized skills,The simple,easy to understand process allows for easy DIY assembly,and it requires no maintenance for daily use,Its durable and stable performance meets the needs of both DIY enthusiasts and professionals,making it an ideal choice for both practicality and convenience Versatile:Our casters are used in a wide range of applications including pallet trucks,tool boxes,U boat platforms,workbenches,furniture and carts,providing stable support for a variety of handling and operational needs,Furthermore,thanks to their high quality design,they significantly optimize the rolling smoothness of heavy equipment in suitable environments,effectively reducing movement resistance and further improving operational efficiency PLATE SIZE: 4.5" (115mm) x 3.9" (100mm). Hole center to hole center: 3.3" (84mm) x 2.8" (71mm). WHEEL DIMENSIONS: Caster Wheel Width: 2" (50mm). Caster Wheel Diameter: 5" (125mm). Caster Wheel Capacity: 1000lbs each caster. Caster Wheel Material: Iron. Overall Heights: 6.5" (165mm)