Features: Stickers for pianos & keyboards with 37/ 49/ 61/ 88 Keys, applied to the white keys only. PVC material, printed with musical alphabet, stave and rising-falling tones, making your learning and practice easier. Backside with adhesive material, easy to adhere to or remove from your keyboard, no residue and no damage. Including instruction stickers to help you stick them within minutes. Great assistant for piano learning and practice of kids or beginners. Specifications: Color: Black Letters with Transparent Base/ Colorful Letters with Transparent Base/ White Letters with Colorful Base(optional) Material: PVC Sticker Size: 17 * 43mm / 0.7 * 1.7in(single) Item Size: 27.4 * 19.6cm / 10.8 * 7.7in Item Weight: 20g / 0.7oz Package List: 1 * Piano Sticker