The Kupo Caster with Brake 80mm/ 22mm Square Adapter Set of 3 is a perfect accessory that will grant your light stand mobility. These casters come in a set of three, which is ideal to attach to a single light stand. Other than providing mobility, these castors also help in protecting the floor from getting scratched. The casters offers more grip with the floor surface when applied with the unique brake system. The brakes also help in locking the movement of the light stand. The caster comes as a set of three 3-5/32 inches or 80mm casters that are designed to fit 7/8 inches or 22mm square legs.