Hours of gameplay can really damage your hands, so do yourself a favor and get the Flexible PS3 Controller before you really hurt yourself.
The Flexible PS3 Controller is for those who start to feel pain after spending a long time trying to achieve the end goal of the game. Contrary to the name of the product, it's not the material that's malleable. Instead, it's considered flexible because the mid-section can fold up in half like a pair of binoculars. It's a pretty cool idea especially since holding a stiff rugged controller can be extremely painful at times.
Overall, the Flexible PS3 Controller is a great invention that will definitely be of help when gamers are completely wired in to the game they're trying to master or beat.