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 + plastic Wire gauge: 18-26AWG Needle spacing: about 2.54 mm Rated voltage: 250V Rated current: 3A Working temperature: 25 ~ 85 Package Included: 20pcs x 2.54mm x 1 Pin female crimp pins wire jumper pin housing 20pcs x 2.54mm x 2 Pin female crimp pins wire jumper pin housing 20pcs x 2.54mm x 3 Pin female crimp pins wire jumper pin housing 10pcs x 2.54mm x 4 Pin female crimp pins wire jumper pin housing 10pcs x 2.54mm x 5 Pin female crimp pins wire jumper pin housing 10pcs x 2.54mm x 6 Pin female crimp pins wire jumper pin housing 140pcsx 2.54mm male crimp terminal 140pcsx 2.54mm female crimp terminal