Features: 61 or 88 Keys: This piano rakes covers all note of 61 or 88 keys keyboard, very suitable for most popular piano models and standard 61 or 88 keys piano keyboard. Easy installation and removal, no-stick and damage to piano key.. Colorful Coded: Each piano keyboard note is coded with bright and joyful color to help kids and beginners identify and memorize them quickly and easily. Just rank that piano label and overlay on the keyboard. Easy to Removable: This piano keys stickers can be overlay at once, no additional timing and effort is needed like transparent piano stickers, easy to place and remove that piano stickers when you finished practicing at any timing. Bright Large Letter: The letters on that piano stickers are bigger than regular ones. Those piano letter stickers can be seen more clearly by kids. Clearly visible keys and note on the stickers make learning funny and exciting. Works For: The removable piano stickers are perfect for beginners and kids to learn and memorize the music for theory, musical notations and keys positions. Chart sits nicely behind the keys and does not interfere your playing. Specifications: Material: Silicone(black)、PVC(colorful) Color: Black/Colorful Keys Options: 61 Keys/88 Keys Package Size: approx.75x75x45mm/2.95x2.95x1.77in (More Size Detail, Please See Photo.) Package Includes: 1Pc x Piano Sticker note: Please allow 1-3mm error due to manual measurement. Please make sure you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color of the item. Thanks!