With the Vacu Vin Pineapple Slicer, you can easily slice a pineapple into rings and pieces. Cut off the top of the pineapple and twist the pineapple slicer into the pineapple. Remove the pineapple slicer from the pineapple when it can no longer be cut further. Now you can enjoy the pineapple rings. To turn the pineapple rings into pieces, simply place the yellow piece on top and push it downwards. This way, you can easily slice the pineapple.