About this item

• ［Main Parameter］: Stem size : 7/16" (11mm) x 7/8" (22mm) (Diameter *Length) fit most office chairs (Not for IKEA chairs ). Each caster is 3 inch. Wheel diameter 75mm, wheel width 24mm. Support 175 KG / 386 LB max (as a set of 5). Entire support bracket and internal parts are made of superior quality steel, providing years effortless rolling and durability.
• ［Easy Installation］: They can easily be installed without tools or hardware. Just simply pull off your old casters from your office chair, then firmly insert the new chair casters replacement and make sure they are secured to the chair.
• ［Safe for All Floors］: No need chair mat! Soft polyurethane material on our office chair wheel casters are guaranteed not to scratch, dent or leave marks on your floors, best choice for wood,hardwood, laminate, vinyl, tile and carpet floors at any time.
• ［Smooth and Quiet Rolling］: It won’t make any squeaky sound, these stylish casters with premium double ball bearings make chair rolling smooth and quiet. With 360°free rolling heads and stainless steel balls, you’ll feel the movement of casters feel like a silk, and change the chair's direction effortlessly.