Description: Portable Piano: The 1:1 piano key design has a good hand feel and a more realistic touch, which can better strengthen the hand feel and fingering practice. Easy to Carry: Kids hand roll piano can be rolled up, small and light, and can also be carried when traveling, easy to store and use. LED Display: The travel piano has a display, the numbers are clear and easy to read, the sound processor is strong, the response is faster, and it is easy to use. Function: 88 keys roll up piano has start and pause, sync and insert function keys, speed control, keyboard drum, metronome function, volume control, rhythm function. Material: Roll up piano is made of high quality silicone material, the keys are soft and feel good, tightly fitted and durable. Specification: Material:Silicone Size Chart: 136cmx22cm/53.54inchx8.66inch Package Includes: 1 Roll Up Piano 1 Battery 1 USB Cable Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.