Specification: M Series 0.14: 60 - 80W M Series 0.15: 85 - 100W M Series 0.2: 70 - 85W M Series 0.3: 55 - 65W Package Contents: 5 x GeekVape M Series Coils Geekvape M Series coils are mesh coils designed for sub-ohm vaping using high-powered devices and high VG e-liquids. The mesh design of the coils provides a large surface area for more efficient vapourising, large vapour clouds and enriched flavour. Geekvape M Series coils work with the following: Geekvape Z Max Tank