Big Chillers 2 Piece Ice Cube Tray Silicone Molds for Whiskey Ice, Cocktails, Cold Beverages, Square, Large Large cocktail beverage chiller - keep your cocktail or beverage chilled longer without watering down your drink They're flexible molds for a variety of uses, the novelty large square mold shape can be used to freeze soup bases, herbs, ice coffee, and juices BPA free food grade silicone - is dishwasher, refrigerator, freezer and oven safe