Lead Pb Plumbum Dice Cube Mendeleev Periodic Element 1 x 1 x 1 cm each Total weight - 11,34g Lead (Pb) is a heavy, soft metal whose chemical symbol comes from the Latin word plumbum, meaning "lead," which also gave us words like plumber (historically used lead pipes) and plumb line (a lead weight for true vertical). Its properties (malleable, dense, corrosion-resistant) made it useful for pipes, but its high toxicity also led to widespread poisoning, notably in ancient Rome and with modern gasoline additives. Item will be shipped by registered mail with tracking number.