The Stars Helmet Sticker Set comes with 12 stars. - 6 big 1-3/4" stars - 6 little 3/4" stars They come on a sheet that is 3-1/2" wide and 5" high. The Reflective Stars Sticker set is perfect to add safety to all sides of your helmet! But they can be used on any smooth hard surface like plastic, metal, or glass. This Reflective Stars Decal Set is cut from Genuine 3M, Automotive Grade, Retro Reflective Safety Vinyl. This is the same reflective decal material used on police cars and fire trucks. They look like regular decals in the daylight, but at night they glow under flashlights and headlights. You are not limited to using this Reflective Stars Set on helmets. They are good on any smooth surface! You can add safety to your, bicycle, scooter, jet ski, snowmobile, and car! The Hyper Reflective Stars Set will be shipped flat, and will come with detailed application instructions.