OEM replacement for Herman Miller Aeron, Setu, Mirra, and Embody chairs
Also fits most standard chair bases with its 7/16" 7/8" (11x22mm) grip ring mounting stem
Soft wheel tread material is designed for hard and carpeted floor surfaces
Great for use as replacement casters
Original casters can be removed by pulling off and these new casters can be inserted into the existing caster socket holes in the chair base. No special tools are required.