①. [Fit For]-- The Replacement Extractor Blade is Fit for NutriBullet 600w or Pro 900w Series. Models listed as below. 600w units number: NBR-0601, NBR-1201, NB-101, NB-101B, NB-101S; 900w units number: NB9-1301, NB-201. [Not Fit For]-- NOT COMPATIBLE with for NutriBullet RX(1700 watts), NutriBullet Lean (1200 watts), Baby Bullet or Nutri Ninja blenders. Please check your blender model before purchasing. ②. [Stainless Steel Extractor Blades]-- The high-speed blade is made of food-safe stainless steel and sealed with silicone rubber gaskets. Durable and no leakage. Use cyclonic action to break down tough ingredients. Create your favorite smoothies, omelets, snacks and nut butters. ③. [Included]-- 1 x Replacement Emulsifier Cross Blade Assembly. 1 x Silicone Rubber Gasket O Ring pre-installed already in the blade. Blade Size: Outer Diameter/Inner Diameter: 10.5/9.8cm x Height: 4.2cm ④. Package Contents:1 x Replacement Extractor Cross Blades ⑤. Only the above package content, other products are not included. Note: Light 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.