Economical method of accessing the ignition coil PLUS other circuits.This tool is used to tap into circuits for voltage tests, oscilloscope wave forms, or other diagnostics.It features plastic adapters which snap on to wire, and become permanent connectors for future diagnostics.It includes two jumper wires, 25 wire adapters, one tube of silicone sealer.This item is included as part of Thexton 2802 Master Ignition Coil Adapter KitAdditional adapters are available.Thexton 460 Universal Coil Plus Adapter