Stainless Steel Blade BaseThe NutriBullet blade is made of high quality stainless steel and does not need to be ground. Sustainable and 100%. This blade is made of stainless steel and will not require sharpening, rust resistant and durable. Food Grade SealsWith a food grade silicone seal in the bottom, to seal without leaks. to the all-new blade, it breaks down ingredients into their most nutritious and absorbent state. Easy to UseWires are smoothed for easy on and off. Contains a pre-installed rubber gasket in the bottom for a complete seal with the cup.Compatible with the NutriBullet 900W Juicer. Multiple UseDouble-edged blade, ideal for grinding oats and cereals for coffee beans, fresh herbs and spices and for cutting nuts. Effortlessly pulverizes fruits, vegetables and protein shakes into a delicious, smooth texture.