The piano key strip is made of , and durable for a long term use. The reliable and practical piano key strip will help you reduce your practice time and carry out more effective practice activities. Features - ColorAssorted Color -Material:PVC, metal - Size: 82.50X4.00X0.05cm/32.42X1.57X0.02in(Piano Keyboard Note Strips) -Box diamater: 7.5cm -Note: The piano keyboard note strip is not-self-adhesive, and it is suitable for 61-key piano. -Easy to install, find the -key marked on the piano key label to correspond to the same key on the piano, then flatten the keyboard note overlay. -This piano note label would be the easiest and the most effective piano learning tool available -Lightweight and practical, you can hardly feel their presence when playing the piano -The surface of the strips are smooth, without resistance, more convenient and practical -The piano note strip is perfectly matched with the keyboard and is clear and easy to read, making it easier to learn piano Package list: 2 x Piano Keyboard Note Strips 2 x Storage Cases