Streamline car maintenance both at home and on the road with the help of the Extreme Max Battery Buddy Universal Ring Terminal Harness. With it, you'll be able to use the same trickle charger on multiple vehicles without the hassle of detaching and re-attaching ring terminals. Keep ring terminals connected at all times to use your Extreme Max 1229.4000 Battery Buddy or other charger. This battery terminal harness also features universal SAE pin configuration. Its 12" leads are double-bonded and heat shrunk to ensure durability and safety over time.