3 fingers for 4 point dilation. Provides even dilation by allocating tension on all sides of the pupil.
10-091-beehler_pupil_dilator_with_plunger,10-5127-reusable_iris_retractor,1-020s-bard_parker_handle,4-0740s_adson_dressing_forceps_flat_handle_stainless_steel,16-081s-towel_forceps,18-302-plastic_sterilizing_tray