Standard replacement caster wheels for office chair.
The stem diameter is 7/16" (11mm); stem length is 7/8" (22mm) which will fit into most chair models except Ikea chairs.
Ikea Caster Sterm Diameter is 10mm, NOT Compatible.

The stem length is not critical as most chair base will accommodate a little longer or shorter stem.No special tool is necessary for the replacement job.
Just pull out the old wheels and snap these new wheels back into place.

Maximum Weight Rating: 100lb/wheel,500 lbs as a set of 5. MySit caster wheels is tested to the industry ANSI/BIFMA safety standard.
High quality assurance with 30 days money back satisfaction guarantee and 10 Years Warranty.

• Replacement for standard carpeted floor office chair caster
• Industrial standard 11mm Metal stem diameter compatible with most chair base. NOT Compatible with Ikea Chairs Which Use 10mm Diameter Stem Caster
• Heavy Duty, BIFMA Quality, Maximum Weight Rating: 100lb/wheel
• 10 Years Manufacturer Warranty
• 30 Days Free Replacement or MoneyBack Guarantee

Replacement for standard carpeted floor office chair casterMySit