Vinyl die-cut sticker. Because it's much Krazier when spelt with a K! This is a Die-cut vinyl sticker with transfer tape. These stickers are perfect for just about everything. They are made out of a vinyl material that lasts for up to 8-10 years in most cases depending on the weathering that it takes (sun, rain, etc). Reflective stickers last even longer and are awesome in certain types of lighting conditions.