Divaricatore per bocca 

For newbies with breathing obstruction fears

very intimidating with the ratchets but reduces oral access somewhat. I added a strap to keep it from falling out/shifting when you're vertical or bent forward. Adjustability gives a good control dimension to play and is also a nice feature for newbies with breathing obstruction fears. Easy to clean, easy to use....produces lots of humiliating drool too.