Produced by Coil Master you have a 30ft spool of 26AWG Kanthal A1 wire to build your coils with. 26AWG kanthal A1 is 0.4mm kanthal A1, which is one of the preferred wires for sub ohm RDA builds, due to its low resistance. It’s thick wire too, which allows you to build easily, just make sure you check your build on your ohms meter before using it!