◎ Waterproof Stickers The second image compares the sticker to an iPhone X (138 x 65). You can apply these stickers without issue to flat surfaces such as guitars, skateboards, helmets, and laptops. You can also put them inside clear smartphone cases. ◎ We also offer combined purchases with other items. 2 stickers for 800 yen, 3 stickers for 1000 yen, and each additional sticker is 300 yen. If you'd like to purchase multiple items, please comment first, and I will create a dedicated page for you. Alternatively, you can request a combined purchase. In that case, please provide the product numbers.