4 Pcs 1 5 Inch Swivel Caster Wheels Nylon 360 Degree Threaded Stem Caster Wheel M8 x 13mm 33lb Capacity

4 Pcs 1.5 Inch Swivel Caster Wheels Nylon 360 Degree Threaded Stem Caster Wheel, M8 x 13mm, 33lb Capacity. * Get smooth, quiet rolling and full swivel action, all while protecting your floors. * Perfect replacement for home or office chairs that have hard, noisy, rough plastic wheels. * Note: Each caster capacity is 15kg, total capacity for all 4 casters is 45kg (calculated by 3 casters ). Because when the road is uneven, there will be only 3 casters bearing weight.