The Wotofo Profile RDA Mesh Pre-Built Coils are high performance sheets of mesh material designed specifically for the Wotofo Profile RDA build deck. After several extensive tests in their research and development department, Wotofo decided to produce these mesh sheets with traditional Kanthal A1 heating material. This material has proven to distribute heat evenly throughout the coil while reducing hot spots and the possibility for burnt hits. The 0.18 ohm Mesh Coil is rated for use between 40-60W to offer outstanding flavor with a balance of massive cloud production. To install these 16mm x 6.8mm sheets, insert one end to one side of the clamp style build deck, then the other, and vape away.