Master Mfg. Co Noiseless Futura Chair Mat Casters - 7/16in Dia. x 7/8in Long Dual Grip Ring Stem, 110 lbs./Caster, Matte Black, 5/Set

Hard nylon wheels for use on carpeted surfaces. 5/Set. Eliminates black powder residue created by metal-to-metal friction. 7/16in dia. x 7/8in long stem fastener with dual grip ring technology eliminates excessive noise. 2-3/16in dia. hooded dual wheels with 1-1/2in dia. oversized neck fits 1-1/2in dia. chair legs creates the illusion of a solid unit. Matte Black Finish. Weight Rating: 120 lbs/Caster.