Clapton coils consist of a pair of wires: one thicker axial wire, and a thinner wire wrapped around the thicker wire from end to end. Clapton coils resemble thick guitar or piano wires. In vaping, the advantage of a clapton coil over a standard coil is that the clapton coil provides more surface area over the same overall lenghth of coil. This increased surface area translates to more contact with the E-Liquid soaked wick, and a better flavor and cloud production.