2" dia. dual wheels. Weight rating: 110 lbs per caster. Oversized Neck—Oversized neck to create the illusion that the caster and the associated furniture base/leg are one continuous unit. Soft polyurethane wheels for hard flooring and chair mats. Caster/Glide/Wheel: Caster; Color(s): Matte Black; Color Family: Black; Stem Type: Grip Ring Type B Stem.