Having 'lectured' elsewhere on the boards about the danger of plastic speculum's breaking, either intra-vaginally or intra-analy I second wholeheartedly the cautions expressed in this thread.
Two other caveats apply -
1) They are often relied upon as being sterile because they are wrapped. Would someone please tell me how we can warrant the conditions in some Chinese sweat shop where most of these are made - and wrapped?
2) Does no one remember the millions of Chinese made toys that were removed from sale just last year, because they contained all manner of deadly poisons in the plastic. We all know how efficient the rectum and to a lesser extent the vagina, is at absorbing substances. Do you really want lead poisoning, or similar, administered in this way?
Metal, metal, metal everytime, conscientiously sterilised,for this playdoc!