The Antigravity Battery Side Terminal Adapters (AG-TA-SM) convert your top post battery to a side terminal battery. The Chevy Corvette C5-C6 models often had Side Mount Terminals and these adapters can be used for those models and other Cars that have Side Posts. These adapters are simple and quick to install. The Antigravity Side Terminal Adapters are compatible with 6-12-volt batteries using standardized SAE Terminal Sizes. Clearly marked with plus and negative symbols.