A Cusco vaginal speculum is a gynecological instrument which is used to view a animal  cervix properly. This instrument is one which can be reused.The Cusco vaginal speculum is a gynecological instrument which can be used in a variety of situations. Even when the patient on whom this instrument is being used is in a left lateral position, the Cusco vaginal speculum can still be made use of and a sufficient amount of cervical smear can still be taken out.