Easy to use: just screw on a nozzle and fill the bag. It comes with a coupler for quick, fuss-free nozzle changing. Versatile: use it to ice cupcakes, pipe biscuits or fill cannelloni. Create pretty florets, stylish swirls and more. The bag is made of strong cotton for tear-free piping, with a plastic lining so ingredients flow smoothly with minimal wastage. This large icing bag is 100% reusable and washable. It comes with KitchenCraft's 12 month guarantee.