Features 1、There are 310 pieces jumper wire connectors in various specifications, meeting your varied working needs. 2、Very easy to use, just cut off the conductive metal head and insert it into the insulated connector housing. 3、Widely used in automobile, airplane, electronic product, household appliance, electronic factory and so on. 4、Made of premium plastic and copper material, ensuring excellent electrical conductivity in long term use. 5、You can use the storage box to store all the accessories in an orderly way, and the carrying is easier as well. Specification Item Type: Jumper Wire Connector Product Material: Plastic + Copper Colour: Black, Silver Pin Pitch: Approx. 2.54mm / 0.1in Package List 30 x 1 x 1P Connector Housing 20 x 1 x 2P Connector Housing 20 x 1 x 3P Connector Housing 10 x 1 x 4P Connector Housing 10 x 1 x 5P Connector Housing 10 x 1 x 6P Connector Housing 10 x 1 x 8P Connector Housing 100 x Jumper Wire Female Pin Connector 100 x Jumper Wire Male Pin Connector