Feature: 1.High quality for durable and long-lasting use. 2.The best helper for beginners 3.Innovative fretboard note decal helps you learn piano and master the fretboard 4.No sticky residue after removed 5.Easy to install and remove 6.Made of super wear-resistant, ultra-durable material Specification: Name: piano electronic organ staff sticker Sticker size: 42.5* 8.5mm Material: environmental protection can move adhesive Suitable for: piano beginners and enthusiasts Caution: do not wash. Package Included: 1* sticker Note: 1.Due to different producing batches, product details might be a little different. If you minding the difference, please buy it carefully. 2.Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item.