The Weighted Insulated Cup with Spout Lid single handle adapted drinking cup has steel weight added internally in the base. Double wall design keeps hot liquids hot, cold liquids cold. The Weighted Insulated Cup with Spout Lid has a tube spout, or snorkel lid, that is designed to help direct the liquid straight into the mouth, and is also great for sipping. Steel weight has been added internally in the base of the cup to reduce tremors of the hand, commonly associated with Parkinson's Disease and other illnesses or injuries that cause tremors. This heavy insulated adapted drinking cup weighs 8.4 ounces, and holds up to 8 ounces of liquid. Due to the added steel weight, the cup cannot be placed in a microwave. People with tremors of the hand may find this heavy Weighted Insulated Cup with Spout Lid helpful for drinking without spilling. Weighted Insulated Cup Spout Lid Specifications: Color: Blue cup, white tube spout lid. Capacity: 8 oz. Weighs: 8.4 oz. Material: BPA, Phthalates and Latex free. Care: Dishwasher safe. DO NOT Microwave. Made in: USA.