Features: 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 COMPATIBLE with for NutriBullet RX(1700 watts), NutriBullet Lean (1200 watts), Baby Bullet or Nutri Ninja blenders. Please check your blender model before purchasing. The high-speed blade 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 butters. Note:The Silicone Rubber Gasket O Ring pre-installed already in the blade. It may be loosen during the transportation, please put it snugly in the blade before use for best performance Specifications: Color: Gray Material: Plastic + Stainless Steel Blade Size: Outer Diameter-10.5cm/4.13in,Inner Diameter-9.8cm/3.86in,Height: 4.2cm/1.65in Package Contents: 1 x Replacement Extractor Cross Blades Safely in a Bubble Bag. Note: Please allow a little differences due to manual measurement. Due to the difference between different monitors,the picture may not reflect the actual color of the item. Thank you!