Replacement Cross Blades: The cross blades are made of plastic and stainless steel, and each replacement blade comes with a silicone gasket and hard plastic gear on the bottom.fit for: The replacement cross blade only for 250W Magic Bullet blenders.Not Compatible: Will not work for any Mini Magic Bullet, Baby Bullet blenders.Great Functions: The cross blade is great for chopping, grating, mixing and blending foods such as onions, cheeses, meats, smoothies, sorbets and frozen drinks. Also Perfect for whipping up refreshing frozen cocktails, mocktails, and milkshakes, homemade hummus, creamy soups or homemade baby food.Colour:BlackMaterial:Plastic + stainless steelPackage Contents:2 * Cross Blades Only the above package content, other products are not included.Note: Light shooting 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.