MASTER Futura Euro Design "B" Stem "S" Wheel Caster - 2.18" - 100lb per Caster - Black Futura dual wheel caster is designed exclusively for "Euro-style" chairs. Specially designed 1-1/2" diameter neck fits 1-1/2" diameter chair bases, creating the illusion of chair leg and caster being one unit. 2-3/16" diameter, dual-wheel soft caster is designed for use on hard floors and chairmats. Weight rating is 100 lb. per caster. Height: 2.5"Packaged Quantity: 5 / SetColor: Black