ROI is important but don't forget about safety.
DYRON suggest x50 return within 3 years and holding ICO on behalf of a Norwegian legal entity.
The funds will be in an escrow company account and multisig wallets. Staged financing.
This is not speculation or gambling, it's an investment. Risky as with any start-up, but this is an investment.
You can check on website https://dyron.xyz