Description: This is a very and practical thumb piano sticker that can easier to remember the keys on the piano keyboard because you can remember it by watching the sticker. In addition, it can also help you play thumb piano music, which bring you a sense of satisfaction, fill you with positive energy and motivation, have a good encouragement effect, and help you learn happily. For piano beginners, this is a good tool.This is the best gift for beginners of thumb pianos and can help you find the correct keys quickly. Easy to paste and remove, with .When you don't need it in , you can delete it without leaving any residue. Specification: Product name: 21-key kalimba sticker Material: PVC colour: As shown Package Contents: 5 x keyboard sticker(Style as shown in the picture) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.