This is a guide that allows you to cut a loaf of bread into your desired number of slices. You can choose from 4, 5, 6, or 8 slices. Set the guide, place the bread, and cut with a knife, following the guide. It was convenient for slicing bread made with a bread machine, which I used to struggle with. I don't bake bread anymore, so I'm offering it to someone who will use it!