Features: brand new and high quality Material: Kalimba stickers is made of safe & gentle and waterproof paper materials, which can provide you with a good for touch. Features: Kalimba stickers deepen the memory and understanding of each note and keyboard position, improving the learning progress. Easy to Paste & Remove: When you dont need it in the future, you can delete it without leaving any residue. Applicability: Kalimba stickers are great for anyone who is just learning or for someone needing a note refresher, which are visually clear, and do help to quickly locate the keys as you're trying to learn to sight read. Nice Gift: This is the great gift for beginners of thumb pianos and can help you find the correct keys quickly. Specifications: Material: Sticker Color: As The Picture Shows Package Weight: approx.5g Type Optional: 17 Keys/21 Keys Size: As The Picture Shows Package Includes: 1Pc x Thumb Piano Note Sticker note: Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!