Hi, I have a question. I have a couple of binaltechs at home. I heard from my friend that diecast toy shouldn't be around with children because they can contain lead. I have 2 kids at home, should I be concern about the binaltechs since they are partially diecast toys or if there is any info that binaltechs have lead in them? I hate to put them away but my kid's health are a first priority. Any advice?