You can purchase NFTs if you see a Buy now option. Only NFTs with this option are available for direct and immediate purchase.
If the Buy now option doesn’t exist on the NFT Detail page, then the NFT isn’t for sale.
Are NFT purchases reversible?
No, any transactions made on the blockchain, including NFT purchases, are irreversible due to the nature of the blockchain.
You can however, opt to resell your purchased NFTs at a fixed price on Coinbase NFT, or resell it in an auction elsewhere. Please be aware that any royalties to the Creator, and transaction fees may also incur with each sale.