The bottom blade assembly is 6FINS Blade with 7 fins gear , 4"/10CM diameter, 165g, made of food grade PP and stainless steel. OEM replacement cups for Nutri Ninja Auto iQ 1000Watt Blender. Blade Assembly Apply to: Nutri Ninja 900W/1000W NUTRI NINJA PRO BL450 30/BL 456 30/ BL455 30/BL451 30 Blade Assembly Apply to: 1000W Nutri Ninja Auto-iQ Blender BL480 30/BL481-30 / 1100W BL482 30/BL482QPR 30 /BL482QPK 30 4.1100W Nutri Ninja Auto iQ Pro Complete Personal Blender/ BL486CO 30 BL487 30/BL487A 30/BL487QH 30 Nutri Ninja AUTO-IQ SMOOTH BOOST BL487T 30 Ninja Nutri-Blender Pro with Auto-iQ, 1100-Watt, Personal Blender - BN400, BN400C, BN401, BN401C, CL401A, CL405CO/ Works with: BN750, BN750C, BN751, BN751C, BN800, BN800C, BN801, BN801C, DB751A BL910,AMZ493BRN,AMZ012BL Packing include:1x 6Fins blade with 7 fins gear Bottom Blade Assembly, 1 x 32oz Cups for Nutri Ninja Auto iQ 1000W (Please confirm your Nutri Ninja's model before purchasing).