Warm Prompt Please confirm it's 5 Fins and 3/8 diameter before purchase. Please measure the lowest fins number and length of the unique blade. Replaceable Model The five Fins blender blade match for Ninja blender models: QB3000, QB3000SSW-30, QB3000QR-30, QB3001SS-30, QB3000QBK, QB3004, QB3005. Not Compatible 7 Pins/Fins, 6 Pins/Fins, If your blender model starts with Bl2, Bl4, Bl6, Bl7, BL8, BN, NJ, NN, CT, QB, this blade is not well suited with your blender. Tips: 1't overfill! To maintain away from overflow, don't add elements that exceed the "maximum" fill line. 2 not run the blender for more than four minutes at a time to circumvent overheating. 3 reminder that your ninja blender blade is better to get replaced every 6 months. (Specific in holding together with your frequency of use) four investigate whether or not or no longer the bottom instruments is loose before use. If it is loose, please tighten it. five yes the rubber gasket is glued to the bottom blade to circumvent leakage. Statement: The 5 fins Blender blades alternative section we sell are not customary product. The design and production agree to the original standard. Its function can attain the unique level. The manufacturers acknowledged above are just used to expose compatibility. Product Specifications:Item Type: 5 Fins Pro Extractor Blade Assembly for Nutri Ninja blender Blade Size: three in (Diameter) x 3 in (Overall height) Blade Weight: zero (2PCS) Blade Shape: Cross Blade Colour: Black Material: plastic + stainless steel Package Contents: 1 x base three x sealing ring 1 x cleansing brush (random coloration Do not accept designation) Only the above equipment content, different merchandise will not be included. Note: Light shooting and various displays may cause the colour of the article in the picture somewhat different from the real thing. The length allowed error is +/- 1-3cm.