The Ninja blender alternative elements is optimal event with spb-600ca, bfp-10, bfp-10ch, bfp-703, cb-5, cb-6, cb-7, cb-8, cb-9, fpb-5, fpb-5c, fpb-5pc, sb-5600, spb-10, spb-10ch, spb-5, spb-6, spb-7, spb-7bch, spb-7ch ect. Ninja blender substitute elements use food grade metal blender knife & rubber gasket can rest assured that the blender replacement ingredients are in contact with food. Blade is sharp enough to weigh down ice, milk, fruit, meat, protein powder. High-quality rubber ring can prevent leakage when the mixer is in operation Ninja blender blades 7 fin is the best substitute blades for Nutri Ninja, it permits your juicer to be used again, very appropriate for all your blending and mixing needs, easily mixing outcome and greens and protein shakes are crushed into delicious, comfortable textures. No other devices essential during installation use the matched Iron hook to put in the Gasket Rubber. 1. Your motor base should be 7 fins. The Replacement Blade cannot match all of the 7 fins blender's motor base: there are too many items of blender blade, if the ultimate two digitals(not part of mannequin #) or any personality is difference, please do not buy it 2. Your blender model must be similar with our acknowledged mannequin COMPATABLE WITH 7 fins model Auto iQ BL2012, BL2013, BL480, BL480D, BL481, BL482-30, BL486CO, BL487, BL487A, BL488W, BL490, BL491, BL492, BL492W, BL640, BL641, BL642, BL642W, BL642Z, BL680A, BL682, NN100, NN100A, NN101, NN102, BL2012. NOT FIT FOR BL660, BL663, BL740, BL770, BL771,BL773CO, BL780, BL780,BL820,BL830,BL450,BL451-70,BL454-70,BL482-70. Please verify your model carefully before purchasing. Colour: black Material: plastic + stainless-steel Package Contents: 1 x knife holder Only the above equipment content, different merchandise usually are not included. Note: Light taking pictures and diverse displays can cause the color of the item in the photograph slightly assorted from the real thing. The measurement allowed error is +/- 1-3cm.