We are providing Prop 65 warning labels to inform consumers that the product contains chemicals on the State of California’s Prop 65 list. It does not mean that a product is unsafe. All Delta Faucet Company products meet or exceed the requirements of applicable product performance and safety industry standards, as well as the federal Safe Drinking Water Act. The label simply ensures that Delta Faucet Company is in compliance with the State of California’s Prop 65 law for warning label requirements.