Finding the right ergonomic office chair, though, can be tricky — there is no universally perfect model, because every body is different. “If you take a one-size-fits-all approach, there are a ...

Set of five sockets. Fits casters with a 7/16-inch Grip-Ring Stem up to 1 1/2-inch long Also fits Miracle Casters Steel Click alternate image to see dimensions.