# Buying and Selling NFT

Nannda's NFTs are developed to ERC 721 standards and can be bought and sold in the following NFT marketplaces.

Nannda is implemented on-chain, and because of the complexity of each specification, each item NFT collection page is completely different.\
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Spellbook of Genesis: <https://opensea.io/collection/nannda-spellbook-of-genesis>

Prophets: <https://opensea.io/collection/nannda-prophet>

Darkness : <https://opensea.io/collection/nannda-darkness>

&#x20;Potion :&#x20;

Shield :&#x20;

Counter : &#x20;

Creator fee: 10%

( Nannda recommends a long-term holding of NFTs and a creator fee of 10% due to the distribution system of the treasuries by $xNDT, which will be discussed later.)