WARNING! Loud Motorcycle May Cause Hearing Loss sticker is ideal in size measuring 10cm x 4 cm (3.9x1.6 inches). Applied by simple peel and stick. The sticker is made of vinyl and will stretch over curves, it is perfect for your helmet, motorcycle or really anything! The sticker is: -Weather resistant -Waterproof / Oilproof -High Quality Adhesive (does not leave marks) -100% AWESOME!