Aquatic Technology 5330WS2430E 24"x30" CPR Instruction Sign With 1/4 Inch Lettering measures 24 x 30 inches, is printed on .040 mil Styrene Plastic and is designed to instruct patrons how to perform CPR. This sign will meet California state code. Our CPR Instructions are kept up-to-date with the American Heart Association Standards and Guidelines. Our general information signs are very noticeable and used to inform people of facility restrictions, policy, object location or instruction. This sign is lightweight, durable, and waterproof for indoor or outdoor use.