Waterproof 12-Key Stickers for Harmonicas (Round 17mm) For Cover Plates: Round 17mm, Fluorescent Yellow, 1 Sheet (12 Keys) Slightly larger than a Marine Band size harmonica. ※The product is as shown in the first photo. The harmonica body in the subsequent images is for demonstration purposes only and is not included. Based on the feedback and opinions of veteran harmonica players who perform under stage lighting, these key label stickers were created with both visibility and water resistance in mind! Designed and handmade in a harmonica (artisan) workshop, from design to cutting. Customized from the tape width to perfectly fit each harmonica size. The fluorescent yellow color and large black lettering make it easy to see and understand even in dim lighting. For harmonica players, it's important to identify the key as quickly as possible and concentrate on playing with confidence. The design is simple and easy to read. The labels have a two-layer structure laminated with film, providing excellent water resistance. Unlike paper stickers, these are durable mini-stickers that are difficult to tear. You can wash the surface with water while the labels are attached, making them suitable for hygienic maintenance♪ They have strong adhesion and stick well, but can be removed cleanly without leaving a sticky residue. You won't directly touch the ink surface. Please check the label sizes and tunings, as there are various options. We offer a wide range of tunings, several sizes, and also labels for the body of the harmonica. We have individual listings for each, so please take a look. Round cover plate labels are available in 15mm and 17mm sizes. The 15mm round size is intended for the smaller Marine Band. Body labels are available in 5mm and 8mm sizes. The Marine Band type uses the 5mm width size.