The video shows a watermelon being cut into slices using a specialized tool. The tool is made of metal and has multiple blades that are attached to a central rod. The watermelon is placed on a flat surface, and the tool is pressed down onto it, slicing through the fruit. The blades are sharp and move quickly, cutting through the watermelon's green rind and red flesh with ease. The video is shot in close-up, allowing viewers to see the details of the tool and the watermelon.