The Polygon Bridge permits clients to rapidly move ERC tokens and NFTs to the Polygon sidechain. There are principally two scaffolds on Polygon, the Proof of Stake (PoS) Bridge and the Plasma Bridge. Both can connect resources from Ethereum to Polygon (as well as the other way around), however they take on various security techniques.
The PoS Bridge utilizes the Proof of Stake (PoS) agreement calculation to get its organization. It upholds the exchange of Ether (ETH) and most ERC tokens. It’s the suggested choice for most clients.
The Plasma Bridge is for devs that need expanded security. It utilizes the Ethereum Plasma scaling arrangement and supports the exchange of MATIC, ETH, ERC-20, and ERC-721 tokens.