I assume the Prop 65 warning on pocket knives is for the brass liners and pins, since brass contains a tiny amount of lead. Ironic thing is, if the blurb on this new “Queen” is correct, it contains no brass (Nickel silver pins and bolsters, steel liners) so it might not even need the California warning. I think the manufacturers are just putting the warning on everything to keep it simple. On a related note, since I found the Prop 65 warning on a brass garden hose nozzle I bought, I’ve made sure not to eat any brass hose nozzles. Can’t be too careful!