PLEASE CHECK: Before purchasing, verify your existing blades by counting the fins. Ensure your current blade has 6 fins and measures 4.1 inches. BEST REPLACEMENT: If your blade leaks or becomes louder during operation, it is time to replace the blade. Regular inspection of the bottom blade is recommended, and replacement every 6 months ensures optimal performance. CONVENIENT AND FAST: Made of high-quality stainless steel, this blade easily blends fruits, vegetables, superfoods, and protein shakes into a smooth consistency. Dishwasher safe for easy cleaning. PACKAGE CONTENTS: 1 x bottom blade replacement. Please note that the rubber gasket may become loose during shipping. Inspect before use and ensure it is securely fitted onto the replacement blade. COMPATIBILITY: This 7-fin blade is compatible 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 list is for reference to confirm accessory compatibility. Color: Black + Silver Material: Plastic and Stainless Steel Package Includes: 1 x Bottom Blade Assembly (includes tool holder and sealing ring) Note: The actual color may vary slightly due to lighting and display differences. Measurement may vary by +/- 1-3 cm.