1.【PACKING LIST】 1x Extraction Blade,2 x Silicone Rubber Gasket. (Notice: 1 x Silicone Rubber Gasket O Ring pre-installed already in the blade.) 2.【No Suitable For】NOT FITS NutriBullet Lean, NutriBullet Pro 1000w, NutriBullet Select 1000w, NutriBullet RX 1700w, MB or Ninja Blenders,and not for other NutriBullet model. Please check your blender model before purchasing 3.【PERFECT SEAL】 Our gaskets are made of food grade silicone material, not rubber material, and the silicone material is much more durable than rubber. Gasket replacement is pre-installed in this replacement blade, you can use the blade without any operation 4.【Compatible Model】The nutribullet replacement parts is compatible with NutriBullet Original 600w or Pro 900w Series. Models are listed below. 600w units number: NBR-0601, NBR-1201, NB-101, NB-101B, NB-101S; 900w units number: NB9-1301, NB-201. ( It is only used to prove the compatibility of accessories.) 5.【Perfect Functions】-- Great for Smoothies and Frozen Drinks: the cross blade replacement part is perfect for chopping, grating and blending. Effortlessly create your favorite smoothies, cheeses, meats, snacks and nut butters. Our nutribullet replacement parts has the following characteristics: - Material: High-strength ABS + Food-grade Stainless Steel - Color: Grey - Size: 4inch"/10.4cm diameter, 175g -Package：1x Extraction Blade,2 x Silicone Rubber Gasket.(Notice: 1 x Silicone Rubber Gasket O Ring pre-installed already in the blade.) Please note - The nutribullet replacement parts recommend replacing the blade unit after 6-months anyway - Please check the rubber gasket and be sure it is put snugly into the bottom blade. (The rubber gasket is used to avoiding leakage - Do not overfill to avoid spilling, do not add ingredients past the "Max" line - Do not run your blender over 4 minutes at a time to prevent overheating of the blender -To clean the blade, we suggest washing it with warm water immediately after use and using a brush for hard-to-reach areas. Avoid washing the blade in the dishwasher. -Do not freeze the cups as it can make them brittle and prone to cracking -Before using the blade, ensure the gasket is snugly in place and check the gear at the bottom. If it's loose, please tighten it for best performance. Product quality and customer satisfaction is our top priority. If you have any questions please contact us, we will provide the best service for you