Features 【Good Material】: Combining flame retardant plastic and brass materials, very reliable and durable for long use. 【Easy Crimping】: Just insert the crimping terminal into the connector and press it once, very simple to operate. 【Reliable Work】: Ensuring firm connection, these connectors ensure electrical safety and convenient uses as well. 【Broad Utility】: Widely used in speaker, monitor, household appliance, copier, fax machine, computer, battery, etc. 【Various Sizes】: Comes with 500pcs jumper wire connector in total, which has various sizes for your working needs. Specification: Item Type: Jumper Wire Connector Material: Flame Retardant Plastic + Brass Specification: (Approx. 2.54mm / 0.1in) 20 x JST 2.54mm XHP-2 Housing 20 x JST 2.54mm XHP-3 Housing 20 x JST 2.54mm XHP-4 Housing 15 x JST 2.54mm XHP-5 Housing 15 x JST 2.54mm XHP-6 Housing 20 x JST 2.54mm B2B-XH Through Hole Shrouded Header 20 x JST 2.54mm B3B-XH Through Hole Shrouded Header 20 x JST 2.54mm B4B-XH Through Hole Shrouded Header 15 x JST 2.54mm B5B-XH Through Hole Shrouded Header 15 x JST 2.54mm B6B-XH Through Hole Shrouded Header 320 x JST-XH 2.54mm Female Pin Connector  Package List:90 x Through Hole Shrouded Header90 x Housing320 x Female Pin Connector Note:Pay attention to electrical safety. Package List 90 x Through Hole Shrouded Header 90 x Housing 320 x Female Pin Connector