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 playing 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 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: PVCSticker Size: 1.7 * 4.3cm / 0.7 * 1.7in(single)Item Size: 2 7.4 * 1 9.6cm / 10.8 * 7.7inItem Weight: 20g / 0.7ozPackage List:1 * Piano Sticker