Other examples from this: https://www.tswfast.com/content/proposition65

  Steel Products
  Steel products can expose you to nickel, known to the State of California to cause cancer, and lead, known to the State of California to cause both cancer and birth defects or other reproductive harm.

  Power Tool Parts
  WARNING: The metal parts of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. None of these products are to come in contact with food and drinking water.

  Electrical Cords
  WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.