2" Dual Wheel Chair Casters Set of 20 - Heavy Duty Grey Soft polyurethane protects hardwood/tile. Smooth, quiet rolling. Universal 7/16" stem. Steel resists rust. Not for IKEA

Universal 7/16" Stem Fit Standard 7/16" (11mm) stem diameter with 7/8" (22mm) stem length fits 99% of office chairs.
Installation takes 30 seconds: pull out old casters, push in new ones until they click into place. No tools required. Not compatible with IKEA chairs (10mm stem). 650lbs Load Capacity Each set of 5 casters supports up to 650lbs total (130lbs per wheel). Dual-wheel design with precision ball bearings delivers smooth, quiet rolling on bare floors or low-pile carpets. Steel bracket with electrophoretic coating (black finish) resists rust and corrosion. More Stable Than Standard Casters The 2" dual-wheel design provides a wider contact surface and lower profile than ordinary single-wheel casters. The lower 2" height lowers the chair's center of gravity, eliminating the wobbling and tipping sensation common with taller 3" wheels. You get a more planted, stable seating experience. Ultra-Quiet Rolling Precision ball bearings in both swivel and axle eliminate squeaking and rattling. Twin-wheel design reduces vibration. Ideal for shared spaces, apartments, and late-night work sessions. Hardwood & Tile Protection Soft TPR rubber material prevents scratches, scuffs, and marks. Unlike hard plastic casters, TPR glides smoothly without leaving black marks or dents. No floor mat needed