uxcell M8 x 15mm Threaded Stem 1.5-Inch Wheel Dia Swivel Non-Brake Caster 4PCS for Chair

Protect for hardwood, laminate, tile, slate, and all other hard floor surfaces. Ideal as replacement castors for chairs, tables, racks, file cabinets, machinery and more. Designed for safe, smooth rolling and quite twin wheel swivel action. Note: Each caster capacity is 10kg, total capacity for all 4 casters is 30kg (calculated by 3 casters ). Because when the road is uneven, there will be only 3 casters bearing weight.