This starter switch has fast become a custom builder's favorite due to its many features. No need for a starter relay with this switch. OFF-RUN-START with spring return like a car. Designed for marine use, it has special weatherproofing stainless steel terminals. Push key for choke feature can be used to activate horn or to start the bike. Overall length 2'', diameter 1-1/2'', mounting hole 13/16'', with flat side so switch can't turn in hole. Furnished with terminal hardware, mounting nut and two keys. May also use with magneto. Switch housing is made of Black Delrin--''strong stuff.'' 5 Terminals & One Ground (six total).