Waterproof Stickers The second image compares the sticker to an iPhone 8 (138x65mm). You can stick them on flat surfaces like guitars, skateboards, bags, notebooks, etc. You can also put them 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 want a set, please comment first and I will create a dedicated page for you. Alternatively, you can apply to purchase a set, and if you do, please calculate the discount and apply accordingly.