Master Mfg. Co Noiseless Duet 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 with dual grip ring technology eliminates excessive noise. 2in dia. hooded dual wheels. Matte Black Finish. Weight Rating: 110 lbs/Caster.