Doubles investment is a total scam. Nobody will believe this junk. And it's not a faucet, it's a HYIP scheme, I'm sure people here won't invest on it.
This thread should be moved to Investor-based games sub-section, Ponzies, HYIPS belong there.
Here's a screenshot of the investments i've doubled just today!
Very trustful, a new account saying that had the money doubled. And even if you are a legit person that really had the money doubled, it won't last for much time and in the end most people sending money to this junk will lose their money.