Cart & Stool Casters Replacement for most dental stools Smooth rolling on tile and hardwood floors Soft wheel for hard floor caster, Surf Replaces 24V Volt/150 Watt bulbs in older 6300 lights A-dec® is a registered trademark of A-dec, Inc. DCI has no affiliation with A-dec and A-dec has not authorized DCI replacement parts to be used on or in connection with A-dec® products.