Nowadays, if a product cannot be paired with the word "smart", it is too embarrassing to sell it. Even products that have nothing to do with electronics, such as dance shoes, are also smart. These ballet shoes can record the trajectory during the dance, allowing you to review the entire dance trajectory after dancing. To put it simply, they are "drawable" ballet shoes. It is equipped with an Arduino sensor that can record the movements and pressure of the dancers feet when they hit the ground, and transmits these data to the mobile phone. The accompanying App can visualize a series of movements (displayed in the form of continuous line drawings). As you dance, you can review your dance tracks and improve them. This is actually a new way of creating art. The designer of this product is the graduation project of Lesia Trubat from ELISAVA design school.