Fangrui Product Details [compatibility]-- The Parts Are Compatible With For Ninja With Auto-iq 431kku480, 575kkud450; 900w Food Processor Bl450-70, Bl451-70, Bl454-70, Bl455-70, 1000w Bl480,bl480d,bl480-70, Bl480w-70, Bl481-70, Bl482-70, Bl483-70,bl484-70. The Model Number Must Be . If Any Number Or Letter Is Not The Same, Please 't Buy It.[not Compatible With]-- The Blade Is Not Suitable For Ninja Models Listed : Bl450-30, Bl451-30, Bl454-30, Bl455-30, Bl480-30, Bl480w-30, Bl481-30, Bl482-30, Bl483-30, Bl484-30,bl660, Bl663,bl740,bl770,bl771,bl773co,bl780,bl820,bl830. Only Fit 18,24,32-ounce Cups, Not Fit 16-ounce Cups.[6 Fins Accessories For Ninja] -- Made Of High Strength Stainless Steel, The Pro Blades Are For Ninja To Deliver Vitamin And Nutrient Extraction To You Tasting Smoothies, Freeze Drinks And Sauces. The Blade Is -installed With Rubber Washer For Better Seal To Avoid Leakage.[2 Extra Rubber Gaskets]-- Please Note One Washer Is -installed Already In The Blades When You Receive It. Extra 2 Gaskets Are For Your Use In . Do Not Install The Extra One When Test Or Use. One Blade Need Only One Gasket. Make The Cups And Blade Are Properly Assembled Time Operating The Appliance.colour: As Shownmaterial: Plastic Contents:1 * Blade2 * Rubber Gaskets1 * Clean Brush (random Colors, 't Accept The Specified Color)only The Above Content, Other Are Not Included.note: Light Reflection And Different Displays May The Color Of The Item In The A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.