1. For Aluminum Welding: The Graphene Welding Liner is adaptable to aluminum, copper, and other soft metal welding wire, compatible with a wide range of sizes ( .023"-.045"). 2. Fit for MB15 MIG Gun: The Welding Cable Liner is compatible with MB15 15AK KD KD MIG Welding Gun, Spool Gun, and fit for ARCCAPTAIN MIG200. 3. Smooth Welding: The Conduit Liner is made of graphene material which is light and ow friction coefficient. It can provide more efficient and smooth wire feeding, allowing you to have a better welding experience. 4. Easy Wire Feeding: The welding liner with phosphorus copper wire feeder, is easier and more efficient access wire. 5. Durable: The wire feeding liner that made of graphene material, is not easy to wear and tear, longer service life. Manufacturer ARCCAPTAIN Material graphene Item Weight 3.2 ounces Package Dimensions 11.69 x 9.69 x 0.59 inches Included Components Conduit Liner Welding Liner Power Source AC