This peeler blades are made of high quality stainless steel, sharp enough and not easy to rust. With plastic sleeves it will protect your hands. The peeler is designed with three blades. You just need to change the button and you will get three different blades. And each sheet should be applied in the right place. Open the blade cover from the back of the rotary switch and turn it on to separate the upper and lower covers, remove the cover, remove the blade and rinse with water.