What is Renzo Restaked's ETH?

Could you please elaborate on what "Renzo Restaked's ETH" refers to? I'm not entirely familiar with this term and would like to gain a better understanding. Is it related to a specific Ethereum staking service or is it a nickname for a certain type of Ethereum investment? Also, could you explain the potential benefits or risks associated with it? Is it a widely adopted practice in the cryptocurrency community? Lastly, how does it differ from other staking or investment options available in the market? Thank you for your clarification.