1.Fit For: The 12 pieces replacement parts only compatible with NutriBullet original 600 watts or Pro 900 watts series and 900w sport juicer. Models are listed below: 600 watts units number: NBR-0601, NBR-1201, NB-101, NB-101B, NB-101S. 900 watts units number: NB9-1301, NB-201. Used with 18oz, 24oz and 32oz cups of Nutribullet blender. We don't claim these are original NutriBullet. It is only used to prove the compatibility of accessories 2.Not Fit For: Not compatible with Magic Bullet (MBR-1101 250Watts), NutriBullet RX(1700 watts), Nutribullet pro+(1200 watts), NutriBullet Lean (1200 watts), little boy and little gril Bullet(200 Watts), and Nutri Ninja. Please check your blender model before purchasing 3.Powerful Cross Extractor Blade: The replacement extractor blade is made of food-grade 304 stainless steel with better corrosion resistance and fully sealed with silicone rubber gaskets to ensure long time use without leakage. BPA-Free and dishwasher are . Use cyclonic action to whip up your favorite foods so you can fully unlock the nutrition behind them and enjoy your daily smoothies, omelets, snacks and nut butter as your wish 4.Package Included: Total 12 pcs: 1 replacement emulsifier cross blade assembly (Silicone Rubber Gasket O Ring pre-installed already in the blade). 2 rubber gasket, 6 shock pad, 1 white motor top base gear, 1 black rubber gear, 1 Brush. Blade size: Diam 4 in, Height 1.6 in. Material type: Stainless Steel + Plastic Silicone