Ninja Blender Cup 16 oz Single serve | Ultima or Professional 1500,1200 watt etc Authentic Ninja cup, 16 oz capacity Fits all 4 tab standard pro and ultima Blenders that came originally with single serve cups. *Does not fit the new auto iQ blender Fits Ninja Ultima Blender Model # BL810, BL820 BL830 . Also fits Ninja BL770 / BL771 / BL772 | Ninja BL780 BL730 | BL740 BL660 and BL663.