Metric Stem Size: These casters are Metric System M10 , the stud diameter is 10 diameter and the stud length is 0.79"(20mm).
Quiet & Smooth Roller:Hirate soft caster 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 Industrial Casters: Steel structures body is extremely hard wearing and resistant to dirt, 600 lbs capacity for 4 pack 3 INCH casters, can be widely used for most chairs and other furniture with METRIC STEM M10 only.
Suitable for Most Chairs: Soft polyurethane chair rollers are suit for 95% office chair,perfect for standard Herman Miller Aeron chair,big and tall executive office chair,Noble Chair Epic gamer chair,Z-line chair,basic mid-back office chair and more
Safe Protection for All Floors: Our newly upgraded nylon stand polyurethane casters are guaranteed not to scratch or leave marks on any surface. You chair can enjoy a carefree, safe sliding across wood, hardwood, laminate, vinyl, tile and carpet floors at any time. (BUT not fit for I-K-E-A chairs).
