6 round to 4 flat, electrical circuit adapter, use in towing trailers when the vehicle & trailer have different electrical connections, if vehicle has a 6 way round connector & your trailer has a 4 way flat style connector used for the trailer lights, insert this product into the vehicle 6 way round connector & plug the 4 flat trailer connector into it to operate the lights, use only on 12v dc vehicle circuits.
WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), 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.