Features:This kit comes with the most common jumper wire pin housings in addition to male and female crimp pins in a case.These work are great with all your typical breadboard style pin connectors and sockets.Come in a transparent box of classification management for convenient use and storage.There are total 370 pieces jumper wire connector parts which is good for home electronics prototyping.Fine workmanship and easy to use.Applications: automotive, aircraft, electronic products, household appliances, electronics factories and other connections.Specifications:Material: tin-plated copper+ plasticWire gauge: 18-26AWGNeedle spacing: about 2.54 mmRated voltage: 250VRated current: 3AWorking temperature: 25 ~ 85Package Included:20pcs x 2.54mm x 1 Pin female crimp pins wire jumper pin housing20pcs x 2.54mm x 2 Pin female crimp pins wire jumper pin housing20pcs x 2.54mm x 3 Pin female crimp pins wire jumper pin housing10pcs x 2.54mm x 4 Pin female crimp pins wire jumper pin housing10pcs x 2.54mm x 5 Pin female crimp pins wire jumper pin housing10pcs x 2.54mm x 6 Pin female crimp pins wire jumper pin housing140pcsx 2.54mm male crimp terminal140pcsx 2.54mm female crimp terminal