PLEASE CHECK: Before purchasing, verify your existing blade by counting the fins. Your current blade should have either 6 fins and be 4.1 inches or 7 fins and 4.1 inches. BEST REPLACEMENT: If your Nutri Ninja bl leaks or becomes louder during operation, it may be time to replace the extractor blade. It is recommended to inspect the bottom blade regularly and replace it every 6 months for optimal performance. CONVENIENT AND FAST: The blade is constructed from high-quality stainless steel, designed to easily crush fruits, vegetables, superfoods, and protein shakes into a smooth, consistent texture. After use, the blade is dishwasher safe for quick and easy cleaning. PACKAGE CONTENTS: 1 x bottom blade replacement. Please note that the rubber gasket may become dislodged during shipping. Inspect before use and ensure it is securely fitted into the replacement bottom blade. COMPATIBILITY: This 6-fin blade is compatible with Nutri Ninja bl models 900W BL450-70, BL451-70, BL454-70, BL455-70; 1000W BL480-70, BL480W-70, BL481-70, BL482-70, BL483-70, BL484-70. This 7-fin blade is compatible with BL2012, BL2013, BL480, BL480D, BL481, BL482, BL486CO, BL487, BL487A, BL488W, BL490, BL491, BL492, BL492W, BL640, BL641, BL642, BL642W, BL642Z, BL680A, BL682, NN100A, NN101, NN102. Compatibility refers only to the accessory fit. Color: Black + Silver Material: Plastic Package Contents: 1 x Tool holder 1 x Sealing ring Only the items listed are included; other accessories are not included. Note: Lighting and display settings may cause slight variations in color between the product image and the actual item. Measurement may vary by +/- 1-3 cm.