This test lead has one end that serves as a probe, with a stainless steel test point that fulfills a dual functions .The tip can be inserted into a standard banana jack or used to penetrate insulation and backing layers of P.C.BOARDS . A cap is provided to protect the tip when not in use. The other end of the lead is a shrouded straight 9 leaf spring standard banana plug with molded strain relief and the plug is insulated to prevent user from shock. Standard Length 4' . Available in red or black