Easy to Use: Peel off the protective film the back of the sticker and start applying the glue. Stickers have no random or repeating patterns. Waterproof: Made of high-quality PVC material, durable, and waterproof. The adhesive is of good quality and will last for a long time. Wide Uses: Can be attached to water glasses, helmets, notebooks, guitars, luggage, cars, mobile phones. 50 Sheets: Sizes range from 4-8cm/1.57-3in, unique design stickers bring more fun to your life. Designed for teens, adults, girls, and adults.