Plastimo Motoring Cone and Anchor Ball. 18. 5 x 13 cone. Also called a day shape, a motoring cone is required on sailboats 40' (12m) or larger proceeding under sail when also being propelled by machinery during daylight hours. Display with the cone pointing down, in the catch rain orientation. Molded black plastics. Indicates use of motor on a sailing boat. Folds flat.