The blades are made of plastic and stainless steel, and each replacement blade comes with a silicone gasket and hard plastic gear on the bottom. Functions: The blade is great for chopping, grating, mixing and blending foods such as onions, cheeses, meats, smoothies, sorbets and freeze drinks. Also Perfect for whipping up refreshing freeze cocktails, mocktails, and milkshakes, homemade hummus, creamy soups or homemade . Name: knife holder Function: cutting vegetables, minced meat, stirring, beating eggs, kneading noodles Capacity: less than 10 liters Material:plastic colour:Black Package Contents: 3 x Blades Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.