FAQ: "Will these fit on my office chair?"
Answer: Most modern office chairs use a 7/16" diameter stem. We recommend you check your current caster stems. Measure the diameter by setting one stem next to a ruler. If you find your stems are the skinnier 3/8" diameter (9.5mm) this item is for you!
Unsure about the size stem you need? Send us an email and include a photo if possible. Send that to firstname.lastname@example.org, we'll get back to you quickly.Installation is easy. Your existing casters will pull out with the old stem still in them. Now just push in the stem on your new casters. Its that easy!