The Lisle 69300 Master Relay and Fused Circuit Test Kit makes testing circuits with a relay or fuse quick and easy. This kit includes eight fixed relay test jumpers that work like back probes. Spaded terminal wires work with other relays such as those used in European vehicles. Terminal leads connect to fused circuits using Female-Pal, JK, LJK, Male-L-mini, Mini, ATO and Maxi fuses. This kit also includes: two open-ended terminal wires, an inline switch with stacking banana plugs, two 3.5' extension wires and an extension wire with a large alligator clamp that can be used to apply external power from a battery. All wires use standard banana plugs.