Pack protocol is one of the NFTs that Bundle arbitrary crypto assets as rewards into fungible packs. that allows users to create and sell packs filled with rewards. with Airdrop or sell packs to the audience. Engage the entire audience with a chance to win exclusive rewards without reducing the bottom line, and allow users to open a pack to receive a reward to make the process exciting, Packs are limited supply, fungible tokens. users can be open for a reward or sold on a secondary market. and Reward rarity backed by the blockchain with Smart contracts ensures there are no backdoor winners. and the chance of receiving a particular reward from a pack is determined by the supplies of the rewards.