Durable and good quality[Fit For]-- The Repment Extractor 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.[Powerful Stainless Steel Extractor s]-- The high-speed is made of food-safe stainless steel and sealed with silicone rubber gaskets. More Durable and no leakage. Use cyclonic action to easily break down tough ingredients. Effortlessly create your favorite smoothies, omelets, snacks and nut ers.[Included]-- 1 x Repment Emulsifier Cross Assembly. 1 x Silicone Rubber Gasket O Ring pre-installed already in the . Size: Outer Diameter/Inner Diameter: 10.5/9.8cm x Height: 4.2cm.[Note]-- 1 x Silicone Rubber Gasket O Ring pre-installed already in the . It may be loosen during the transportation, please put it snugly in the before use for best performanceThe details are as described above