CHECK: buying, check your existing blades by calculating the fins. check the number of your existing blades. It should be 6 fins and 4.1 inches. REPLACEMENT: If your blender leaks or becomes louder during mixing, it's time to replace the extractor blade. It is really recommended to check the bottom blade regularly and replace it 6 months to good performance. CONVENIENT AND FAST: The blade is made of high-quality stainless steel, which can fruits, vegetables, superfoods and protein shakes into a , texture. After mixing, you can put it in the dishwasher for cleaning. THE CONTENT INCLUDES- 1 x bottom blade . Also note that the rubber gasket may be loose during transportation. Pls check it use and make it is put tight into the replacement bottom blade. COMPATIBILITY- 7 fins blade for blender is only suitable for BL2012 or BL2013 or BL480 or BL480D or BL481 or BL482 or BL486CO or BL487 or BL487A or BL488W or BL490 or BL491 or BL492 or BL492W or BL640 or BL641 or BL642 or BL642W or BL642Z or BL680A or BL682 or NN100A or NN101 or NN102.it is only used to prove the compatibility of the accessories. Colour:Blackandsilver Material:plastic Package Contents: 1 x tool holder 1 x sealing ring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.