AUMUA Replacement Parts Accessories for Ninja Nutri Pro Personal Blender - Seal Ring Gasket Replacement fit perfectly and seal properly. If your old rubber seal had gotten very worn out and even discolored, then you should replace it with a new one.

Function
Our new replacement parts can help prevent leaks and avoid a lot of mold buildup in the gaps. It is recommended to replace the rubber ring for your blender blade every 6 months.

Compatibility
Compatible with Nutri Ninja BL660, BL770, BL740, BL663, BL663CO 30, BL665Q, BL770W, BL771, BL771C, BL772, BL772Q, BL773, BL773CO, BL780, BL770-30, BL773CO-30, BL771-30, BL780-30, BL780CO-30, QB3000, QB3000SS, QB3004, QB3005. (Note that they do NOT fit Ninja BL450 BL451 BL456-30 BL480 BL480D BL481 BL494 BL641 BL642 NN210C CT680SS or BN400 BN401 BN750 BN751 BN800 BN801 BN805A or TB301 TB401 SS101 SS151 SS351 SS401 CO401B AMZ493BRN)

Need to Know
The grooves are different on each side of the ring. Please make sure you install with the 1-groove side down, and the 3-groove side up. Otherwise, it won't fit properly.

What You Get
2x White seal rings
1x Pick-up tool