This watermelon slicer has an automatic blade. Simply push the watermelon slicer into the watermelon and the cubes will come out automatically. Cuts perfect cubes of watermelon slices every time. The unique design of the watermelon slicer cuts watermelon into 2 cm cubes every time you use it. You can make your own watermelon salad in less than a minute. Enjoy refreshing watermelon cubes without any mess.