About this product

English System Stem Size: Our caster wheels are English Unit standard 5/16" with 18 TPI,Coarse Thread (US), the stud diameter is 5/16" and the stud length is 0.79"(20mm), if your stem socket is Metric M8, this is incompatible, please check before buy.

Quiet & Smooth Roller: mute caster wheels made of high-tech elastic polyurethane, with internal bearings are quick rolling and the surface is sleek,wouldn't get stuck by crumbs,hair, wouldn’t damage on floors.

Heavy Duty Caster: Steel structures body is extremely hard wearing and resistant to dirt, 650 lbs capacity for 5 pack 3" casters, can be widely used for most chairs and other furniture with English Stem 5/16” only.

Multifunctional Casters: These caster wheels can be used for chairs with stem socket or any other tool car, cart.instrument cases, art tables, and so much more.

[No Chair Mat Needed]Our desk chair wheels replacement will NEVER scratch, smudge or damage your floors. Safe for wood, hardwood, laminate, vinyl, tile and carpet floors.

[Rolling As Quiet And Smooth]this Wheel is made of high-quality soft polyurethanes, which are high mechanical strength, wear resistance, shock absorption and low-noise. Good resilient rubber base also has extra anti-dirty and self-cleaning actions