[Ninja Blender Replacement]--If your Nutri Ninja juicer is leaking or making too much noise while blending, then you need to replace the juicer blades. We recommend checking the bottom blade regularly and replacing it every 6 months for good performance.[Ninja Blade]--For Nutri Ninja Shank Extractor Blade Assembly Model 307KU; Ninja Professional Blender Ninja BL660 (1100w), BL770 (1500w), Ninja BL740, BL663CO 30, BL665Q, BL770W, BL771, BL771C, BLC 772, BL. 772Q, BL773, BL773CO, BL780, BL770A 30, BL770 30, BL773CO 30, BL771 30, BL772 30, BL780 30, BL780CO 30.[Quality Replacement and Dishwasher Washable]--The extractor blade is made of food-grade high-strength stainless steel, which is safe and durable. Replace it and continue your healthier lifestyle incorporating nutritious shakes, smoothies, nut butters, and whatever else you want. You can put it in the dishwasher for cleaning after mixing. Very easy to clean without hassle.[Tight Sealing O-Ring]--The rubber gasket sealing O-ring is already installed in this replacement blade, you can use this blade without any other operations. Please understand that the gasket may come loose during transportation. Check before use and make sure to put it in the replacement bottom blade.[Note] -- Please check the bottom gear before use, if it is loose, please tighten it.color:As shownMaterial:plastic+stainless steel+rubberPackage Contents:1 x cutter holder1 x rubber ringOnly 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.