This Whisky Tumbler Set is crafted from mouth-blown crystal for luxurious toasting - bringing a contemporary touch to elegant drinks. The Sphere collection, launched in 2014 as part of Nachtmann's NextGen Project, showcases designer Roman Kvita's expertise from the Academy of Arts, Architecture & Design in Prague, pushing the boundaries of light refraction with its striking spherical convex shapes. Crafted with precision engineering and carefully tested for accurate measurements, these tumblers are durable and dishwasher safe - for a lasting impression. Set contains 4.