The blender replacement parts is fit 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. blender replacement parts use food grade steel blender knife rubber gasket. rest assured that the blender replacement parts are in contact with food.Blade is sharp enough to crush ice, milk, fruit, meat, protein powder. rubber ring can prevent leakage when the mixer is in operation blender blades 7 fin is the best replacement blades for Nutri , it enables your juicer to be used again, very suitable for all your ng and ng needs, effortlessly blending fruits and vegetables and protein shakes are crushed into delicious, smooth textures.No tools needed during installation. use the matched Iron hook to install the Gasket Rubber.1. motor base must be 7 fins. The Replacement Blade cant fit all the 7 fins blenders motor base: there are too many models of blender blade, if the last two digitals(not part of model ) or any character is difference, please dont purchase it2. blender model must be identical with our stated model.ONLY 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 check your model carefully before purchasing. ur: blackMaterial: plastic + stainless steelPackage Contents:1 x knife holder the above package content, products are not included.Note: 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.