I don't know whether or not lead in brass can actually be absorbed by the skin but it's interesting to note that key manufacturers were sued for a similar lead

I don't know whether or not lead in brass can actually be absorbed by the skin but it's interesting to note that key manufacturers were sued for a similar lead content in brass keys: https://oag.ca.gov/news/press-releases/major-manufacturers-agree-reduce-amount-lead-door-keys-under-settlement https://oag.ca.gov/news/press-releases/major-manufacturers-a... so one has to wonder if this keychain is even legal to sell in California?