Learning piano has never been so easy! The removable piano keyboard notes guide are designed by experienced musicians, it is a good teaching tool for piano teachers, and a good helper for kids and beginners. White key sticker (length x width): 4.0cmX1.55cm | 1.57?X0.61?Black key sticker (length x width): 3.9cmX0.85cm | 1.54?X0.33? Instructions:1. Wash hands and clean the keyboard before pasting kids piano stickers.2. Confirm how many keys your piano has, usually 37/49/54/61/88 keys.3. There is a unique number printed besides each piano key letter. According to the number sequence of the installation manual, from the keyboard left to right, paste the stickers corresponding to the numbers.4. Piano key sticker can be pasted several times, if first time it pasted not properly, you can tear it off and paste it again. Paste the keyboard stickers according to the following order for different piano models: 88 keys piano: Black keys(1-36) White keys(1-52) 61 keys piano: Black keys(7-31) White keys(10-45) 54 keys piano: Black keys(7-28) White keys(10-41) 49 keys piano: Black keys(7-26) White keys(10-38) 37 keys piano: Black keys(12-26) White keys(17-38) Package: Keyboard Learning Stickers X 1