English System Stem Size: Our caster are English Unit standard 3/8" with 16 TPI,Coarse Thread (US), the stud diameter is 3/8" and the stud length is 0.79"(20mm), if your caster is METRIC M10 STEM, this is INCOMPATIABLE, please check before buy.
Quiet & Smooth Roller: The combination of a new design with a dust-proof top cover and precision bearings and a shock-absorbing polyurethane tire can make the casters roll smoothly and easily on any surface without making any sharp sounds or noises.
Heavy Duty Industrial Casters: Steel structures body is extremely hard wearing and resistant to dirt, 650 lbs capacity for 5 pack 3 INCH casters, can be widely used for most chairs and other furniture with ENGLISH UNIT STEM 3/8" 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
Valued Purchase: The Hirate branded color-boxed package comes with set of 5 caster and few 3/8”-16 thread Screw Inserts.
