You have 4 choices of material.... -Glossy/matte Vinyl is waterproof and good for tumblers, mugs, or anything that will get wet and is good for outdoor use. -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 3x2.3in