NFTs are considered a unique digital product, which is different from tokens that can be exchanged equivalently, such as Bitcoin and Ethereum. At the beginning of 2021, the token prices of NFT concept projects, such as ENJ, NFTX, REHAB, MASK, MEME, etc., have increased by dozens and hundreds of times. A number of celebrities and investment institutions and designer brands have began to embrace NFTs. Most recently Victoria Secret applying for 10 patents for digital wearable accessories, and McDonalds for inter-metaverse food delivery services that blur the lines between digital and tangible business to consumer sales.