Banana to alligator test leads are made of high quality copper material which are soft, flexible and durable. 4mm standard banana plugs can fit most multimeters. Copper alligator clips provide stronger conductivity and clamping force. Length: 3.3ft/1m. Rated current: 5A. Five colors back probes are made of stainless steel and can be easily measured at three different angles. The stainless steel needle is only 0.07mm. It can be easily penetrated to measure when it is non-destructive. Three different probe angles can meet your various testing needs. Wire piercing probes set can be easily connected with the 4mm banana plug test leads. Perfect for wire piercing. No need to strip off the cables and no damage to the cables. Textured non-slip design enhances your comfort. High reliability and long service life. 44PCS multifunction back probe test lead set can be used not only for automotive diagnostics, testing and repairing, but also in physics laboratories, schools, homes and industries. Probes can easily insert into automotive connectors and use on harness connectors, fuel injectors and automotive sensors. Package include: 5PCS banana to alligator test leads, 5PCS insulated alligator clips, 5PCS heavy duty alligator clamps, 5PCS lengthened wire piercing probes, 2PCS 4mm male to 2mm female adapters, 2PCS inner spring short needles, 5PCS piercing probes with sheath, 15PCS back probes set.