• Size-This product will fit 1-1/4" Size Schedule 40 PVC Pipe, which has an outside diameter of 1-5/8" (1.660").(Not compatible with PVC fittings. For caster attachment with PVC fittings, use our 1-1/4" Caster Fitting Insert )
• Application- Caster Pipe Caps allow you to attach stem casters to a PVC project when your structure terminates in PVC Pipe at the bottom. This allows you to add mobility to your PVC projects for items such as carts, chairs and mobile platforms.
• ✔ Works Great for office Chair : ANPTGHT Office Chair Wheels With Brakes are designed with the universal standard size stem, the screw size is 7/16" X 7/8", (11mm*22mm), suitable for 99% office chairs brands of Miller Steelcase, Aeron, Herman, Dxracer, Humanscale Freedom, Lazyboy Serta, Hon, Boss, etc. IMPORTANT: Not for IKEA chairs.
• ▲ Heavy Duty Construction :To avoid slips and increase friction, our chair caster wheels adopt roller skates technology and passed the top-level test of BIFMA and ROHS. The chair casters built with sturdy steel structure with premium dual-steel ball bearings and PU rim could strong enough to load up 650 lbs by a set of desk chair wheels.
• ✉Smooth & quiet: Fast and quiet office chair wheel-rolling on any surface without any squeak. With these large office chair casters, you're able to roll effortless and change the chair's direction of movement easily.