# Products ## Stablecoins Rocky stablecoins are decentralized stable currencies issued by the protocol on Sei. Their issuance is handled through minting modules, such as the Rocketizer Module, where users deposit an overcollateralized basket of assets (such as ETH, BTC, or other stablecoins) to mint new tokens. For each $1 of stablecoin minted, $1 is invested in the Sei ecosystem, helping to fuel the entire ecosystem. Each stablecoin ([USDr](/products/stablecoins-and-savings/usdr-and-susdr), etc.) can be configured independently with its own parameters, including the types of assets accepted as collateral, the fees applied, and the exposure limits. To ensure price stability, the protocol automatically adjusts minting or burning fees whenever the token deviates from its reference currency. In practice, these stablecoins form the core of the Rocky system and serve as the foundation for all other ecosystem products. Discover USDr ## Savings Savings tokens are the “yield-bearing” versions of Rocky stablecoins. When a user deposits a standard stablecoin, such as [USDr](/products/stablecoins-and-savings/usdr-and-susdr), they receive its Savings equivalent, like sUSDr. This token represents a staked position that automatically accrues yield over time. The yield comes from the protocol’s revenues, such as fees from minting and burning operations or stablecoin reserve management from the Rocky ecosystem. The calculation and distribution of these yields are managed by “keepers”, designated contributors to guarantee transparency and consistency. As a result, Savings tokens allow users to grow their stablecoin holdings without leaving the Rocky & Sei ecosystem, while benefiting from a simple and integrated mechanism. Discover sUSDr