Product Details Fangrui Product Details Please Check: Before Buying, Please Check Your Existing Blades By Calculating The Fins. Please Check The Number Of Your Existing Blades.it Should Be 7 Fins And 4.1 Inches. : If Your Blender Leaks Or Becomes Louder During Mixing, Its Time To The Extractor Blade. It Is Really Recommended To Check The Bottom Blade Regularly And It Every 6 Months To Get Good Performance. Convenient And Fast: The Blade Is Made Of High-quality Stainless Steel, Which Can Easily Crush Fruits, Vegetables, Superfoods And Protein Shakes Into A Delicious, Smooth Texture. After Mixing, You Can Put It In The Dishwasher For Cleaning. The Content Includes- 1 X Bottom Blade Parts. Also Please Note That The Rubber Gasket May Be Loose During Transportation. Pls Check It Before Use And Make Sure It Is Put Tight Into The Bottom Blade. Compatibility: Our 6 Fins Blade For Blender Parts Is Only Suitable For 900w Bl450-70, Bl451-70, Bl454-70, Bl455-70; 1000w Bl480-70, Bl480w-70,