Launched in 2021, NonFungible Rock is one of the many crypto collectible NFT-type projects on the Polygon blockchain, having launched in rush of NFT era, only 100 rocks can ever be available, and each new virgin rock gets more and more expensive. These rocks are built entirely on the Polygon blockchain, with a decentralized smart contract in Opensea used to manage everything including the buying and selling of rocks, their prices, and owners. These virtual rocks serve NO PURPOSE beyond being able to be bought and sold, and giving you a strong sense of pride in being an owner of 1 of the only 100 rocks in the metaverse :)