Waterproof Stickers The second image shows a comparison with an iPhone 8 (138x65). These stickers can be applied without issue to flat surfaces such as guitars, skateboards, bags, and notebooks. They can also be placed inside phone cases. We also offer sets with other products. 2 for 800 yen, 3 for 1000 yen, and then an additional 300 yen per sticker. If you'd like a set, please comment first and we will create a dedicated page for you. Alternatively, you can request to purchase a set, and we will immediately adjust the price after listing the items. Please confirm the price before purchasing.