For use only in non-potable water applications. Composition of 50% tin and 50% lead. Solid wire that is 0.125 in. Dia.Leaded solder50% tin, 50% lead0.125 in. Dia wireFor use only in non-potable water applications. WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. Wash hands after handling.