Caster o/sz neck b hrdwhl *5

5 / Set. Safety Casters provide an internal brake that prevents wheels from rolling freely when you stand up. B stem casters with an oversized neck allow smooth, effortless chair rolling while seated and minimize chair movement when no weight is applied. Dual, 2" diameter wheels feature full hoods. Use hard wheels on carpeting. Weight rating is 100 lb. per caster.