link with the handling and support spheres or conventional tractors for chairs, seats and cushions from office or residential, beds, tables, trolleys, mobile bar, desks.cassettiere, cupboards, bookcases, and all kinds of furniture for the office, hospitals, and for the house that you want to move or make rotating or sliding, including carts for supermarkets.pallet, appliances and sporting equipment such as skateboards and skates.