It's Bigger on the Inside - 3 3/4" x 6 3/4" die cut vinyl decal for window, car, truck, tool box, virtually any hard, smooth surface. | Keen153 This is a vinyl, die cut decal....WAY better than a bumper sticker. The material used is made to last 6 years on the outside of your vehicle but can be applied to most clean smooth surfaces. This product applies to your car similar to how you apply a temporary tattoo.... ..dont worry, we provide indepth application instructions. The transfer tape that we use on our products is clear, which makes for easy application