Learn to be an "independent" umbrella

Little creativity, great wisdom. To make a conventional umbrella stand upright, identifying the center of gravity is a complex process. The designer cast different clay molds with aluminum alloy to determine the best position for the "three legs" through a series of experiments. Then, the material was optimized using synthetic resin (plastic). Such a "self-standing umbrella" can effortlessly stand upright via the "three legs" at the top of the umbrella.