Roll up plastic thin keyboard piano?

Does anyone know what I’m talking about? The keyboard that is like paper or plastic or something and it’s very small and wirey and you can roll it up but when you touch the keys they make sound and everything? What are those called and where can I get one? I would like one with me so that I can have one wherever I go.

My sister gave one to my daughter for Christmas a while back. Yes, they’re really cool, and convenient.
Don’t know where she got it, have you tried calling Toys R Us?

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