They have four different collections and what also separates them is their design. The ones with Khabib are like very different to the ones with machines, for example by design, they are very cool

Well, these are quite similar to standard NFTs but with subtle differences.

I mean, they actually are NFTs, and they have all the characteristics every NFT has. They are unique and you own the rights of that authentic art piece until you decide to sell it. But, how gomining NFTs work is basically that gomining has a bitcoin mining infrastructure, like farms or facilities consisting of rigs, partially financed through these nfts i guess, so when you buy nfts, starting from the first twenty four hours holding the nft, you start to get Bitcoin rewards

So, apart from owning a unique piece of NFT, you are also rewarded for buying and owning it. Pretty neat huh