This item is subject to Section 301 tariffs. Pricing subject to change. Cool your drink without diluting it! Add frozen cubes to beverage in place of ice cubes. Rounded edges and corners prevent cubes from scratching glass. Made of food-grade stainless steel with liquid inside designed to stay cold longer than ice. Comes packaged in retail-ready gift box. FDA Compliant. Outer material is 304 Stainless Steel. Inner contains water and food grade ethanol. Complies with Prop 65.