PLEASE CHECK: Before buying, please examine your present blades via calculating the fins. Please examine the number of your reward blades should be 7 fins and 4 inches. BEST REPLACEMENT: If your Nutri Ninja blender leaks or becomes louder during mixing, it is time to update the extractor blade. It is absolutely recommended to examine the bottom blade always and replace it every 6 months to get nice performance. CONVENIENT AND FAST: The blade is fabricated from effective stainless steel, which may smoothly weigh down fruits, vegetables, superfoods and protein shakes right into a delicious, smooth texture. After mixing, it's essential to put it within the dishwasher for cleaning. THE CONTENT INCLUDES- 1 x backside blade alternative parts. Also please notice that the rubber gasket could also be loose all through transportation. Pls investigate it before use and make sure it is put tight into the substitute bottom blade. COMPATIBILITY: Our 6 fins blade for Nutri Ninja blender replacement components is only appropriate for 900W BL450-70, BL451-70, BL454-70, BL455-70; 1000W BL480-70, BL480W-70, BL481-70, BL482-70, BL483-70, BL484-70. Colour:Black+silver Material:plastic Package Contents: 1 x instrument holder 1 x sealing ring Only the above package content, other item aren't included. Note: Light reflection and various exhibits may cause the colour of the article in the photo slightly assorted from the real thing. The size allowed error is +/- 1-3cm.