Waterproof Stickers The second image compares the sticker to an iPhone 8 (138x65). You can apply these stickers without issue to flat surfaces like guitars, skateboards, bags, and notebooks. They can also be placed inside phone cases. I 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 I'll create a dedicated page for you. Alternatively, you can request a set purchase, and I will adjust the price immediately after listing. Please confirm the price before purchasing.