hjh OFFICE Replacement Caster ROLO for Pin Diameter: 11 mm

The specially coated castors protect your high-quality hard floor from scratches and scuffs that conventional carpet castors can cause. Replacing the castors is quick and easy. The old castors can be easily removed with a little force. Then simply insert the new hard floor castors - and you're done! The chair only rolls when under load. When you stand up, the castors brake to prevent unintentional rolling away. When loaded, the castors unlock and the chair rolls again. When making your selection, please ensure you choose the correct pin diameter and ideally use your old castors as a guide. For an optimal measurement result, we recommend measuring the pin diameter of the old castor with a caliper.