- COMPATIBLE MODELS: Upgrade your Ninja Professional Blender with our 6-Stacked Blade Assembly, designed specifically for models: BL610, BL660, BL660C, BL660W, BL660WM, BL661BBYC, BL663CO, BL665Q, L740, BL740C, NJ600C, BL500, BL500C, NJ600, NJ600RC, and Ninja Kitchen System 1200w models: BL700, BL700C, NJ602CO, NJ602, NJ602Q. This assembly is compatible only with the 72 oz pitcher, so please verify your blender model before purchasing. - SAFE AND DURABLE MATERIAL: Our replacement blades are constructed from food-grade plastic and upgraded stainless steel, ensuring they are rust-resistant, safe, and built to last. They are also BPA-free, giving you peace of mind while blending. - USAGE TIPS: To prevent accidents, do not blend hot liquids as this can create excessive pressure, posing a burn risk. Always adhere to the "Max" fill line to avoid spills. - EASY INSTALLATION AND CLEANING: Installing the replacement blade assembly is straightforward and mirrors the original blade installation. Both dishwasher safe and hand-wash friendly, we recommend using a utensil with a handle when cleaning to avoid direct contact with the blades. - PRACTICAL APPLICATIONS: Ideal for making smoothies, soups, or sauces, this blade assembly enhances your blending experience. Whether you're preparing a quick breakfast or a family meal, our blades ensure efficient and effective performance. Perfect for everyday kitchen tasks, it’s a must-have for any Ninja blender user.