This watermelon slicer come with one automatic cuter bladee, just push the watermelon slicer tool into watermelon, watermelon cubes come out automatic. Watermelon cutting ruler help you to measure 0-2CM cubes as your ideal size. It?s unique composition allows you to make clean and quick slices in watermelon without breaking a sweat!. Now you make your own watermelon salad in one minute, enjoy refreshing watermelon cubes hassle free without dealing with drippy mess.