[Fits]-- The replacement extraction blade fits NutriBullet 600w or Pro 900w series. Models listed below. 600w unit numbers: NBR-0601, NBR-1201, NB-101, NB-101B, NB-101S; 900w unit numbers: NB9-1301, NB-201. [Does Not Fit]-- NOT COMPATIBLE with NutriBullet RX (1700 watt), NutriBullet Lean (1200 watt), Baby Bullet, or Nutri Ninja blenders. Please check your blender model before purchasing. [Powerful Stainless Steel Extraction Blades]-- The high-speed blade is made of food-grade stainless steel and sealed with silicone rubber gaskets. More durable and no leakage. Uses cyclonic action to easily break down tough ingredients. Easily make your favorite smoothies, omelets, snacks, and nut butters. [Included]-- 1 x Replacement Emulsifying Blade. 1 x Silicone Rubber Gasket O-ring pre-installed in the blade. Blade size: Outer diameter/Inner diameter: 10.5/9.8 cm x Height: 4.2 cm. [Note]-- 1 x Silicone Rubber Gasket O-ring pre-installed in the blade. It may loosen during transit, please firmly insert it into the blade before use for best performance. Color: Grey Material: Plastic + Stainless Steel Package Contents: 1 x Replacement Extraction Blade 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 +/- 1-3 cm.