CHECK: Before purchasing, verify your existing blades by counting the fins. Confirm the number of fins on your current blade. It should have 6 fins and measure 4.1 inches. REPLACEMENT: If your 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, capable of blending fruits, vegetables, superfoods, and protein shakes into a smooth texture. After use, the blade can be placed in the dishwasher for easy cleaning. PACKAGE CONTENTS: 1 x bottom blade. Please note that the rubber gasket may become loose during shipping. Check before use and ensure it is securely fitted onto the replacement bottom blade. COMPATIBILITY: This 7-fin blade is compatible only with the following models: BL2012, BL2013, BL480, BL480D, BL481, BL482, BL486CO, BL487, BL487A, BL488W, BL490, BL491, BL492, BL492W, BL640, BL641, BL642, BL642W, BL642Z, BL680A, BL682, NN100A, NN101, NN102. This information is provided solely to confirm accessory compatibility. Color: Black + Silver Material: Plastic Package Contents: 1 x Tool holder 1 x Sealing ring Note: The package includes only the items listed above. Other products are not included. Note: Lighting effects and monitor settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.