Material: This 7 fins Blade 10 cm/4inch diameter is an updated version made ofPBA Free Material which is extremely sturdy incl a Carbon Steel Bearing . The Blade Gear is made of aVulcanized Rubber that is extra Strong and Dishwasher safe. Does not deteriorate easilly, with a strong metal core. Easy to Use: Replace your broken or damaged Blade Gear with thesePerfectly replacement part. You do not need a Technician to do it. See images on the left of instructions. Compatibility: These Blade Extractor is compatible with the following Nutri Ninja Auto iQ Blender: NN100, NN100A,NN101,NN102,BL2012,BL2013,BL450-30,BL455-30,BL480/D,BL481-30,BL482-30,BL485,BL486CO,BL487,BL487A,BL487T,488W,BL490,BL491,BL492,BL492IS-30,BL494,BL640-30,BL641-30,BL642-30,BL680A-30,BL681A,BL681C,BL682-30,BL682QT-30,BL685-30,BL687CO-30,CT680SS,CT680CO2SS,CT641-30. Please Note: Only fit for 18/24/32OZ Cups NOT FIT for 16OZ Model BL451,BL454,BL660 and BL740 Series. Set Contains: 1 x Base Gear 1 x Rubber Gasket for leak Proof Blending. Product provided by MMOBIEL - We always try our best to exceed your expectations at every turn. Join the ever-growing list of satisfied customers and discover the difference with MMOBIEL.