The Vista style contains 192 tips in a single 12 x 16 rack layout—especially convenient for multichannel pipettes. Disposable polypropylene pipet/pipette/pipette tips fits Ovation ESC, E8, and E12 sizes 25-850 &Micro;L and 25-1250 &Micro;L fits Ovation QS and m in sizes 100-1000 &Micro;L fits Ovation F1 and F2 Series in all sizes from 201-1000 &Micro;L fits all MLA models from 201-1000 &Micro;L.