(Name and address of manufacturer or distributor.).
(Size; width, thickness, and length, including both top and bottom for trapezoidal cushions.).
(2) In letters that are distinctively set off or larger than all other marking, and are at least one-fourth of an inch in height:
WARNING: DO NOT WEAR ON BACK
(b)Waterproofness of marking. Marking for buoyant cushions shall be sufficiently waterproof so that after 72 hours submergence in water, it will withstand vigorous rubbing by hand while wet without the printed matter becoming illegible.