A medical tool for inspecting body cavities, especially [[pussy|vagina]].

In Japanese culture, it is popularized by its frequent usage in [[pornography]] as a tool to inspect the AV actresses' vagina to confirm an [[cum in pussy|internal ejaculation]]. It is also often generally called クスコ (cusco, Cusco's speculum). 

h4.See also 
* "Wikipedia":http://en.wikipedia.org/wiki/Speculum_%28medical%29 
* "Pixiv tag search":http://www.pixiv.net/tags.php?tag=%E3%82%AF%E3%82%B9%E3%82%B3
クスコ 鸭嘴钳 扩阴器 窥器