4 Inch Push Cart Wheels Replacement Description: 1.The caster wheel is made of PU,it rolls smoothly and quietly. 2.One caster capacity is 308lb, only cart wheels, a good replacement part for any equipment need roller. 3.Can be used indoor and outdoor,such as trolleys,workbench,tool boxes,light machinery,speakers,cabinets,stands,furniture,shelves and other items commonly found in workshop,garage,kitchen,and office. Specification: Wheel Material:PU Wheel Color:Red Wheel Diameter:100mm/3.93" Capacity:308lb Per Wheel Package Content : 2PCSx 4 Inch Caster Wheels 【SIZE】- Whole push cart replacement wheels diameter is 100mm/3.93-inch; Wheel width is 32mm/1.26-inch,3/8" bearing wheels 【MATERIAL】- The 4 inch heavy duty casters push cart wheels is made of PU(Polyurethane) which are light weight and offer a high load capacity, also has good smooth rolling, and quiet when use 【FEATURE】- The 4" polyurethane wheels are ruggedly built with double ball bearings, load capacity is 308lb Per Wheel, good replacement for your old cart wheels 【PRODUCT APPLICATION】- 3/8" bearing wheels can be used indoor and outdoor,such as chairs,workbench,tool boxes,light machinery,speakers,carts,shelves ,table, trailer, saw table, stage toolbox, bed, corn board 【PACKAGE CONTENT】- 2PCS x 4 inch replacement wheels