1. If you want to make ice cubes without an ice box, you must first get a glass of pure water.

2. Then find a box that can hold water, and pour the water into the crack in the water box.

3. Then put it in the freezer to refrigerate. When it is frozen, take it out and twist the button a few more times.

4. Finally, just take out the ice from the side. In this way, you can make ice cubes even if you don't have an ice box.