Features:When you go out into the field for a long flight, you take several batteries with you so you are not limited to the short flight time. With these caps, you can now easily identify which of your batteries are flat (empty) and which are fully charged(full).These caps are not only for identification purposes, however. They are also extremely useful in protecting your connectors from dirt, water, and grime in the field. These great little caps provide additional comfort by further reducing the chance an electrical short circuit whilst in transit or storage.Specification:Item Name: Dustproof PlugQuantity: 15 PcsColor: Red/Green/BlackApplication: for Lipo Battery with XT60 Plug & T PlugPackage Included:15 x Dustproof Plugs