Features: 1It is recommend to check the bottom blade regularly and replace it every 6 months for good performance. 2The rubber gasket is installed already in this replacement blade you can use the blade without any other operation. 3The extractor blade is made of food grade high strength stainless steel safe and durable. 4Replace it and continue to blend your way to a healthier lifestyle of nutritious shakes smoothies nut butters and anything you want. 5Fit for Nutri Ninjia Extractor Blade Assembly Model 303KKU 307KKU 356KKU800 322KKU770. Only fits for 16 oz cups 6 fins. Specification: Item Type: Blender BladeMaterial: ABS+Stainless SteelColor: As shown in the pictureProduct Size: Approx. 8.5x8.5x8cm / 3.3x3.3x3.1inWeight: Approx.158g/5.6ozFitment: Fit for Nutri Ninja Extractor Blade Assembly Model 307KKU 303KKU 356KKU800 322KKU770Fit for Ninja Professional Blender with Single Serve 1100w (BL660) Fit for Ninja Professional Blender 1000w (BL610)Fit for Ninja Mega Kitchen System 1500w (BL770)Fit for Ninja Professional Blender & for Nutri Ninja Cups (BL740)Fit for Ninja Professional Blender (BL663)Fit for Ninja Professional Blender (BL663CO)Fit for Ninja Professional Blender (BL665Q)Fit for Ninja Professional Blender (CT610)Fit for Ninja Professional Blender (CT610C)Fit for Ninja Professional Blender (NJ600)Fit for Ninja Mega Kitchen System BL770W BL771 BL771C BL772 BL772QFit for Ninja Mega Kitchen System with Slicing/Shredding BL773CO BL773CCOFit for Ninja Supra Kitchen System (BL780)Fit for Ninjia Blender BL770A 30 BL770 30 BL773CO 30 BL771 30 BL772 30 500w Fit for Ninjia Blender BL780 30 BL780C0 30 200w Only the models listed exactly as above is compatible. Only fit for 16 OZ cups. Package List: 1 x Blender Blade Note: 1. Please allow 12in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.