Stem Size:11mm x 22mm (7/16" wide x 7/8" tall);
Fit for Most regular office chairs and other diameter 11mm socket. The Stem diameter is bigger than the Ikea chair 10mm Stem Caster Wheels.if your chair is Ikea office chair, please buy assin B01LVW829D.Please Measure the stem size before buying the item.


They are designed not to scratch your floors, no need to put down a plastic mat for protection. Heavy Duty casters made with durable polyurethane wheels molded over a black 5-star polypropylene inner core on a steel axle with ball bearing core all mounted on a solid steel frame. They roll great on hardwood floors, carpet, tile, laminate, concrete, stone & vinyl. Installation is a breeze; simply pull out your old casters by hand and push in the new casters until stem is firmly seated and secure.

• Stem Size:11mm x 22mm (7/16" wide x 7/8" tall); Fit for Most regular office chairs and other 11mm socket. The Stem diameter is bigger than the Ikea chair 10mm Stem Caster Wheels.if you want 10m stem 3" caster, please buy assin B01M0HNDBB. Please Measure the stem size before buying the item.
• Safe For All Floors; Protect your floors with our soft & strong high grade polyurethane wheels. If you're worried about your office chair scratching up your hardwood floors, fear no more! Our extra large casters are incased with soft clear polyurethane which guarantees to not leave black marks or scratch up any surface.
• Smooth and Quiet Rolling; Our precision ball bearings combined with vibration reducing polyurethane tires will give you a smooth and silent roll. They roll amazingly on hardwood floors, carpet, tile, concrete, stone or vinyl.
• Heavy Duty & high quality. If you do not Like your new caster wheels, we will give you prompt full refund.
• Easy to Install; No tools required; Pull out your old office chair casters and push in your new wheels until stem is firmly seated and secure;

Stem Size:11mm x 22mm (7/16" wide x 7/8" tall); Fit for Most regular office chairs and other 11mm socket. The Stem diameter is bigger than the Ikea chair 10mm Stem Caster Wheels.if you want 10m stem 3" caster, please buy assin B01M0HNDBB. Please Measure the stem size before buying the item.MySit