The name of this NFT is a "2021 Championship Chain". 100 Thieves itself is a lifestyle and gaming brand. You will be asked to switch your network to Polygon and after the claim, it will be also visible on your OpenSea profile.
Claim it from 100thieves
Ends on Saturday 05.02.22 - it is a nice opportunity to claim your first NFT 🔥
You would need to have a compatible crypto wallet in order to claim it so you can use one of these two.