SPECIFICATION - Set of 4 cups, 100% Made in Japan, TritanTM plastic (BPA Free / Prop 65 compliant).;QUALITY - No plastic smell, unbreakable, and reassuringly heavy - with the look and feel of glass.;HASSLE FREE - Innovative dappled interior design prevents tumblers sticking together when stacked.;DISHWASHER SAFE - Tested in lab in Japan, over 1000 wash cycles with no cracks or hazing.;BE CREATIVE - Our customers use them as water, beer and whiskey glasses as well as cups for coffee! Perfect for juice glasses.