Heavy duty nylon housing resists impacts. Set screw holds wires firmly in place. Designed with solid brass contact blades. Easily converts 4-way flat wiring to 7-way blade connectors. ⚠ WARNING: This product can expose you to Lead, DBP,CD, BPA ,hexavalent chromium, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.