Fits For Ninja Blenders BL770A 30/BL770 30/BL773CO 30/BL771 30/BL772 30/BL780 30/BL780C0 30/BL660 30/BL660B 30/BL663/ BL663CO 30/BL660WM 30/BL740 30 /QB3000/QB3000SSW 30/ QB3000QR 30/QB3001SS 30/QB3000QBK/QB3004/QB3005 /BL200 30/ BL201 30/BL201C 30/BL203QBK 30/BL203OCN 30/ BL203QB 30/BL203QY 30/BL204 30/BL206QGN 30/BL206QWH 30/BL206QY 30/BL206QBK 30/BL206QBL 30/BL207QBK 30/BL207QMBL 30/BL810/BL810C/BL810Q/BL820 /BL830,Model303KKU, 307KKU, 356KKU800,322KKU770,357KKU800,476KKU3000. Size: Diameter: If this O-ring is not perfectly appropriate on your model, you could trim it with scissors to envision perfectly. High Quality: The substitute gasket O-ring is fabricated from Silica gel, which is secure and durable. Not smoothly deformed. Better preserve the agitator and play a sealing role. Easy to Install: Easy to install, the gasket of the juicer or blender would be replaced. Flexible O-ring, clean to clean. Just update the previous sealing ring to maintain the bottom blade clear and leak-proof. Package Content: sufficient for you to switch the old one and make your blender appearance new. Colour:White Material:Silica gel Size:8 x eight Package Contents: 6 * Sealing ring Only the above kit content, different merchandise are usually not included. Note: Light mirrored image and varied exhibits may cause the color of the item within the photo a bit assorted from the genuine thing. The size allowed error is +/- 1-3cm.