allow adjustment of extensions 41 with minimal movement of finger wheel 58 a pair of extensions 41 are shown before installation to indicate extension placement fig8 shows the same trigger and hinge body 55 as in fig7 but with two extensions 45 on a lower side and one extension 45 on the upper side of said hinged body this three part extension is frequently used to examine a nose the extensions are installed with projections 40 forced into openings on the front of the hinged body finger wheel 58 with elongated threads allows minimum adjustment of finger wheel 58 to move the single extension tip against tips of the dual extensions fig9 shows a first specialized body or connector piece 65 that twistably connects to the otoscope speculum 7 holder with projection 63 twistably fitting into slot 13 on the speculum holder 7 wire guide 72 is fastened to the lower side of the cone shaped body 65 and has a u shaped opening on anterior end with a beginning end of wire 70 fastened to one side of the u shaped opening with the other end of wire 70 fastened above the pivot point of trigger 74 so that pulling back on trigger 74 forms a.