Contains just about everything you need to troubleshoot and repair electrical failures: wire crimper/stripper, needle nose pliers, 6-in-1 screwdriver, 12V test light, pair of 36 jumper test leads, an assortment of crimp connectors, 14-gauge wire (black and white), electrical tape, cable ties, fuses, bulbs, shrink tubing and a handy diagnostic guide from technical guru Kip Woodring