Marusya Inc's No-Slip Easy Grip Cup. 12oz. Set of 4 Designed by Marusya in collaboration with hand therapists, occupational therapists and rheumatologists Microwave and dishwasher safe, BPA free polypropylene, made in America Lightweight and well balanced with a superior textured grip Set of 4, 12 oz. cups, misty clear color, travel tote included Found in the permanent collection of the Smithsonian Museum. Gourmet Insider Magazine "Holiday Hot List"