【Fit These Model Number Blenders】Fits Nutri Ninja Professional Blender BL660, BL770, BL740, BL771, BL773CO, BL810, BL810C, BL810Q, BL820, BL830, QB3000, QB3000SSW 30, QB3000QR 30, QB3001SS 30, QB3000QBK, QB3004, QB3005.