GonLei Reusable Blood Bag comes empty with 400ml 10 bags per set, it has a working tube, convenient for both funneling drinks and drinking | Made with anti-leak design for worry free revelry, a funnel and a clip styled stopper to avoid spillage and customizable labels. | Completely Food Safe, can contain soda, juice. Blood bag comes with a prestamped hole in the top, for convenient hooking. | Makes a great container for Halloween party drinks as well as decorations. | Beloved by Vampires all around the world