Material:Food Grade BPA-Free PE Material, safe to use.Making your ice cube 100% Pure and Healthy Design: Self-sealing valve , liquid wont leak from the bag in the freezer, prevent ice cube from absorbing peculiar smell or freezer odors Easy release perforations so ice can be separated into cubes or used as an ice bag Easy to use: Simply fill them with water and tie them up to seal them before freezing. These handy self sealing ice cube bags make storing and making ice cubes quick and convenient, especially when freezer space is limited. so you can enjoy any tipple you fancy, on-the-rocks, anytime you like. You can also get creative and freeze homemade stocks, sauces and pureed baby food. Package : include 100pcs disposable Ice Cube Bags,24 cubes per piece,you will make 2400 ice clubes in one time