Our decals are available in sizes from 2" Tall or 3" Wide(Helmet/Hard Hat Size) up to 30" and sometime more! You have the option via the drop down list to choose from regular vinyl or reflective vinyl. Regular vinyl is your standard, everyday window decal material that you see on most peoples cars and trucks. We use a high performance, 5-7 year outdoor vinyl for all of our decals and each decal has a coat of UV Laminate over the top, which extends the outdoor life and protect it from UV, scuffs, etc. Reflective vinyl is the highest performance 3M material on the market today. This material also has a coat of UV Laminate over the top, which extends the outdoor life to roughly 10 plus years if taken care of properly. This material shines bright when the light or flash hit's it. It's the same material you see on most school buses, police cars, firetrucks, etc. Reflective vinyl does cost more, but is so well worth it in the long run. Once you go to reflective, you generally don't go back to regular.