1. Heavy duty 30 amp button ignition with screw connectors and rubber cover. 2. Comes with complete wiring harness (all wiring necessary for installation included). 3. For racing use only. 4. Measures 7 5/16 inches by 2 1/4 inches from outside edges. 5. Mounting holes are 6 7/8 inches by 1 7/8 inches apart.