SAE Cable:25 Feet long copper wire,SPT-2 16AWG,2 Pin, red wire is for positive and black wire for negative, The whole harness is heavy duty, thickness and durable Universal SAE Connectors: Standard terminals, quick connect/disconnect. One SAE input with one SAE outlet, compatible with standard SAE ports Widely used: For expansion and maintenance of most batteries and chargers with SAE quick release connectors. Widely used in a variety of batteries, solar panels, motorcycles, lawn mowers, ATV, RV, traction motors, tractors and other equipment that requires SAE plugs With protection cap: Protect the SAE connector from raindrop and dust. Which will stay clean and dry inside Package Include: 25FT SAE extension cable and SAE polarity reverse adapter.