USE INSTRUCTIONS: Just fill the bag at the funnel-shaped opening and place it in freezer. Tie the opening closely with the blank headers to prevent the water leaking. Keep the bag in a fridge until ice cubes are available. Pull and squeeze bag to loosen cubes, which store in bag. FUNCTIONS: A fun way to make your beverages cool! The Ice Cube Bags offer a more convenient and hygienic way of making ice cubes.