These are great jumper connectors. These features are suitable for all typical breadboard pin connectors and sockets, and are ideal for prototyping home electronics.In addition to male and female crimp pins, the kit is also equipped with the most common jumper pin housings. The quality is good and these can be used in computer manufacturing.The size of the parts for making male and female connectors is available from 1x1 to 2x6 pins. It is strongly recommended for anyone who needs high-quality connectors.This is a 620-piece kit with various connectors from 1x1 pins to 2x6 pins. It also has a large number of terminals and straight pin headers.Convenient storage: Come with a plastic box, put it into a transparent classification management box for easy use and storage.Specifications:Wire Gauge: 18-26 AWGPin Pitch: 2.54mm / 0.1"Rated Voltage: 250VRated Current: 3AWorking Temperature: 25 to 85Box Size: 17.5 x 10 x 2.3cm / 6.89 x 3.93 x 0.9"color: as the picture shownWeight: 135g(approx.)Content:10pcs 2x6p10pcs 2x5p10pcs 2x4p10pcs 2x3p10pcs 2x2p20pcs 1x6p20pcs 1x5p20pcs 1x4p20pcs 1x3p40pcs 1x2p50pcs 1x1p200pcs Male Crimp Pins200pcs Female Crimp PinsPackage Includes:1 Set x Jumper Wire Connectors