The 3 blades are made of Japanese 420-grade hardened stainless steel to ensure they will always stay ultra sharp. All plastic parts are made from 100% BPA-free food grade, durable reinforced ABS. The suction pad once locked will stay firmly secured to the countertop for hours. The handles are strong enough to withstand even the hardest veggies, such as butternut squash, sweet potatoes and beets