"Tangram is an age-old Chinese puzzle made up of a square divided into seven different geometrical shapes, each in one color. The art of the game lies in creating as many complete figures as possible, using combinations of these parts.," according to a Midwest Lens. post. "'A Tangram champion is a champion of talent and wisdom' runs the legend. Vanni's Tangram glasses add a touch of stylish wisdom to the expression. Made from slab acetate devised by the Vanni style center, an exclusive product, the Tangram texture is created by splitting all cubes into irregular pyramids, and then alternated against a deep crystalline background which may be see-through or solid and in one of many color options." Read more.