Flexible Roll Up 37 Key Piano - Features Record & Playback A roll-up 37 key flexible piano!! Once rolled, toss it in a backpack for easy travel and storage Piano keys are designed inside a molded rubber case so they roll up without a problem With 100 kinds of tones &amp; rhythms, the possibilities are endless - Includes 10 demos and record/play and playback With the easy to clean design, and fun to play features, you can't go wrong with the flexible roll-up piano