Here's a set of three sizes of wearable memos that you can erase and rewrite! You can wrap them around your wrist, allowing you to quickly jot down important things or things you don't want to forget! They are waterproof, so you can wash your hands while wearing them, making them perfect for those working in medical fields who need to wash their hands frequently, such as nurses, caregivers, and dental hygienists! They are also great for outdoor work and water work! Compact and comfortable to wear on your wrist, they're also great for personal use!!! 【Product Details】 ・Sizes Large: Approx. 23.8cm x Approx. 4.5cm Medium: Approx. 23.8cm x Approx. 3cm Small: Approx. 19cm x Approx. 2.2cm ・Double-sided design One side is a memo for managing your to-dos, and the other side is a ruler! ・Reusable Even if you write with an oil-based ballpoint pen, you can erase it with an eraser or your finger, so you can use it repeatedly. * We do not recommend using pencils or water-based pens, as the writing may smudge. Please be aware that ink may transfer over time after writing. ・Waterproof Made of silicone and waterproof, so you can wash your hands or work with water while wearing them. They are also resistant to sweat in the summer. ☆This product will be shipped by regular mail, but if you prefer anonymous shipping, we can accommodate you for an additional 150 yen. Please let us know in the comments before purchasing!