Each time you press the plunger, sharp stainless steel blades will rotate with each chop. This ensures smooth and even chopping. A blade cover has been added for extra safety. The cover is removable for easy cleaning. The included cup and lid acts as a storage container for leftover ingredients once you’re finished chopping. The Zyliss Zick-Zick Food Chopper is an attractive and innovative timesaver that simplifies food prep!