🎹【Universal Piano Stickers】Our piano key stickers are suitable for most piano and electronic keyboards. Suitable for a full set of 49/54/61/88 key pianos. 🎹【Reusable & Transparent】Made of high quality PVC eco-friendly material, transparent just like printed on keys, removable but won't leave any traces of glue and won't damage your keyboards. 🎹【Unique Design】The bright label points to key stickers, makes it easier for children to learn piano keyboard and speeds up the memory of the piano keys for kids. 🎹【Easy To Install And Uninstall】Just uncover the piano stickers and follow the instruction on the page, press it on the electronic keyboard or piano keyboard. If you paste them in the wrong place,you can uncover it and re-paste it. It can be removed with no residue left behind,when you do not need it in the future 🎹【Double Layer Coating & Sheets No residue】The piano key labels are printed under the topmost layer to prevent fading of the ink so they are always readable.