This is a beautiful heavy weight instrument in satin stainless steel. The fit between the plunger and the tube is exceptional. This is probably the most comfortable tool to use for a good look up inside someone's asshole. Once inserted, it can be used as a funnel, urinal or spittoon.
Shown above is the proctoscope inserted with the center piece removed. Below it the proctoscope just after insertion with the center piece still in place.