Stone is a simple ceramic (fire clay) washbasin with an unusual draining feature. While ceramic washbasins generally have a central plughole, Stone has a lateral slot that runs along the entire length of one of its internal sides. We thus have a washbasin with an innovative aesthetic impact and the added excitement of watching the water run towards the slot. However, the most important factor is that, while Stone offers a new design, it still makes it possible to regulate the amount of water flowing away. This is made possible thanks to an opening/closing device installed in a special space developed further down the plughole.