15 Lakeland Ice Cube Bags 4 "Great idea but doesn't always work out!" Mrs Scott 23 February 2019 This is a very good idea. You fill the bag with water to make ice cubes. In theory you then pull the bag both ways to release the dividers and then you are left with a bag of ice cubes but this does not always work I find. You end up ripping the bag apart. But you can just release the cubes into another bag and leave it in the freezer so it's fine. A lot more versatile than an ice cube tray. I like it.