one. It is suitable for beginners' fingering practice, helping beginner piano friends to understand the keys quickly and clearly, and helping learners to quickly improve their understanding of the pianotwo. According to the real piano key ratio design, it can effectively improve the piano learning efficiency of beginnersthree. Dust-proof, ink-proof, hand-rollable, reasonable key spacing, black and white keysFour. It can be used as a reference table for students to practice piano, and also for teachers' teaching referencefive. The background is transparent and the printing is clear, which can greatly improve children's learning interest and get started quickly.Material: coated paperProduct size: length: 1220* width: 140* height: 2mmPacking size: length: 310* width: 140* height: 5mm