The 3 in 1 Roto peeler has Stainless steel sharp knife,Serrated head,wavy head and Chipping head.You can turn to selection for the blade.And it can also easy peel orange peel and even hard cheese. Peeling vegetables, potatoes, carrots, sweet potatoes, and other veggies just got a WHOLE lot easier with our Ultra Sharp 3 in 1 Cyclone Knife,peeling blade. This is a must-have kitchen tool then you'll be making beautiful meals in a fraction of the time.Durable materials:Stainless steel and hard plastic.Knife heads are extremely sharp,please be very careful when you using and cleaning