100% OF CHICKS DIG IT
Now this product isn't fore everyone. Its kinda like a digital chalkboard that you can erase with the click of a button. I'v been using it to study, for example writing things down/drawing things out for the purpose of memorizing/learning etc. I think it would be great for practicing math problems, and fun to doodle with without wasting paper. With regards to the price point, considering how long it lasts it might be worth depending on how much you use it in daily life. NOTE: you can't "erase" a portion of what you right, you can only erase the whole thing.
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