Description Color: Black, White. These transparent piano key stickers help beginners quickly master the introductory course. Features: Perfect for Kids: Keeps eyes on the notes while playing, a perfect product for young children just starting to learn piano. Long-Lasting: The stickers are printed on transparent material and coated with a long-lasting adhesive that won't damage your keyboard. Have Fun Learning: Makes learning notes easy and speeds up key memorization, making piano learning easier and more fun, especially for piano beginners and children. Easy to Install: Comes with a user guide with simple instructions to help you install them in minutes. Applicable Keys: Piano, electronic organ, handheld piano with 37/49/54/61/88 keys Material: Transparent PVC How to Use: 1. Use scissors to cut the stickers one by one along the edges 2. Tear off the stickers according to the instructions and find the corresponding keys 3. Attach part of the sticker along the keys and gently smooth it out