Features FIXED CONNECTION Tinned copper material improves electrical conductivity, which ensures a firm and stable connection. Various Pin Headers There are 2 pin, 3 pin and 4 pin connectors and 100 pieces, while the pin spacing of 2.54mm is suitable for 18-26 AWG wires. Extensive Usage Widely used in automobiles, fax machines, computers, 3D printer boards, electronic toys, circuit boards, etc. EASY INSTALLATION Crimp and press the jumper wire connector so that the crimp insulation always points towards the cable, allowing for quick installation. Good Durability By combining high quality plastic material with metal, the pin header connector has excellent durability for long-term use. Specification: Item Type:Jumper Wire Connector Material: plastic. Nominal temperature: 85°C. Package list: 100 x 2-pin jumper wire connectors. 100 x 3-pin jumper wire connectors. 100 x 4 pin jumper wire connectors Package List 100 x 2 Pin Jumper Wire Connector 100 x 3 Pin Jumper Wire Connector 100 x 4 Pin Jumper Wire Connector