Sammons Preston Weighted Cup, 12 Oz. Weighted Mug with Lid & Internal Coaster with 8 oz. Additional Weight, Insulated Beverage Container with Secure Lid for Arthritis, Limited Grasp or Shaking Hands 12 ounce cup with 8 extra ounces of weight makes it easier for users with tremors and athetosis to control movement while drinking Blues container with polypropylene construction and whistle lid insulates hot or cold liquids Features easy-to-grasp handle and stable, wide base for a secure grip for users with limited muscle control or shaky hands Assists those with shaking hands or limited muscle control in drinking liquids independently Not recommended for institutional dishwasher or microwave, bpa and phthalates free, non-latex