I have used one for four days now. It is holding up quite well so far. I prefer twin blade razors and the one I am using seems to do as well as my high dollar atra blades.
Twin Blade
Disposable
Made in Korea
3 packs – 30 pieces
Source:
http://www.wiki-qa.com/personal-care/shaving-hair-removal/3pks-30-pieces-dorco-fresh-twin-blade-disposable-razors-bymelissa-kenny.html