The Special Tumbler Glass, Set of 6 from IVV features clear blown glass with exclusive optical detailing worked into each piece during production. The optics add depth and visual movement to the material, giving each tumbler a distinct quality that plain glassware lacks, while the set of six provides full coverage for table service. Italian glassblowing methods shape each piece individually, and the collection's characteristic surface interest carries through to the drinkware, bringing the Special range's material thinking into everyday use.