The GoodAll 12-500 is a heavy duty plug-to-plug cable clamp set for quick, cost effective, hassle-free boosting.  It includes a 25-foot jumper cable to easily reach disabled vehicles, and a 5-foot plug-ended battery cable to supply power.  This set is constructed of 2-gauge duplex welding cable.  Connectors are non-reversible to ensure proper polarity when connecting the jumper and battery cables.   The clamps on the jumper cable are rated at 500 amps, making this set appropriate for heavy duty jump starting.