Features: Premium Material: Durable self-adhesive material, Will not damage the keyboard. Made of high-quality clear PVC, the stickers won't roll up or fall off, but are still easy to remove without leaving marks. EASY TO USE: The number on the lower left corner of the sticker can help you complete the installation in a few minutes. If you paste it in the wrong place, you can find it and paste it again. When you don't need it, remove it without leaving any residue. Compatible with all pianos and keyboards: for 88, 61, 49, 37 keys. Piano teachers teach tools to help students learn the keys and notes. Multicolor Design: The colorful piano stickers are very eye-catching. It makes studying notes easy and speeds up keystroke memorization. Rod, pitch name, syllable name, triad. Great for beginner piano players. Specifications: Product Name: Piano Keyboard Sticker Sheet Size: 15.5mm*40mm Sticker material: environmentally friendly detachable PVC sticker Features: key recognition, score recognition, score memory Note: do not Cleaning Applicable people: beginners, piano lovers Applicable keyboard: 88, 61, 49, 37 keys piano. Sticker features: pole, syllable name, syllable name Package includes: 1pc Notice: 1. Due to different monitors and lighting effects, the actual color may be slightly different from the image. Minor deviations due to manual measurement are allowed.