Wrapped Punks are ERC721 Tokens, each one backed 1:1 by an original Cryptopunk by Larvalabs.

Buy an original Cryptopunk at https://larvalabs.com/cryptopunks

Turn your Original Cryptopunk into an ERC721 at https://wrappedpunks.com/

CryptoPunks launched as a fixed set of 10,000 items in mid-2017 and became one of the inspirations for the ERC-721 standard.