One of interior design's axioms is that mirrors create the illusion of added space, so Studio Playfool has taken that concept and applied it to a different aspect of day-to-day life with its 'Half/Full' concept. Rather than using mirrors to make space seem larger, Half/Full uses mirrors on tableware to deceive diners into believing their portions are doubly large, ultimately resulting in smaller (and thus healthier) meals.
Half/Full consists of all the pieces that come in a typical tableware set: plates, a bowl, cutlery, and a glass. However, these pieces are all either halved by a mirror or glazed with a mirrored surface. This mirror reflects the food on the implement's surface, making it appear twice its size.
This appetite reduction technique is in line with a study from the University of Tokyo that showed the perceived volume of food has an impact on one's satisfaction from a meal.