You have 4 choices of material.... -Glossy/Matte vinyl is waterproof and good for tumblers, mugs, or anything that will get wet. It is also UV and yellowing resistant so it will not fade or change color in the sun. -Holographic is very durable, tear-free, and waterproof. Great for outdoor use. -Magnet. It is good for using indoors. It is not waterproof so it is not recommended for outdoor use. Size is 3x2.9in