Yes, you need a MetaMask wallet to trade, use and store your NFT. Without a MetaMask wallet, we will be unable to deliver your NFT to you.
MetaMask is a cryptocurrency wallet that allows you to store various tokens and NFTs. It can be used to interact with the Ethereum blockchain and other networks such as Palm. The NFTs in the Color Rhythms collection are minted on the Palm network.
MetaMask is primarily available as a browser extension for Google Chrome, Firefox, Brave and Edge but it can also be installed as a mobile app.
You can also use a Trezor or Ledger hardware wallet for increased security. You can connect your hardware wallet to MetaMask by following the steps here.