Quick and easy installation. No need for cutting. Weld on or screw on lockable mounting bracket. Weather/corrosion resistant. Rust proof, heavy duty plastic case protects battery and charger from the elements. Battery is "non-spillable". Meets or exceeds D.O.T. specifications for trailer breakaway/holding requirements. Contains one each; #2051 lockable battery case, KMS# 5720230 12V sealed rechargeable battery and KMS# 5720100 nylon breakaway switch with 48 inch lanyard and weldable tab.