Look at the two symbols in the middle of this piece of flexible plastic. What do they denote?

Look at the two symbols in the middle of this piece of flexible plastic. What do they denote?

nostr:npub17gek9gagnhd2y6068aegka672zu2g5jf7nx040m4spclmrldxmmsvehgsu You can use it for food and you can put it in the recycling bin.