Geekvape Q Replacement Cartridge 3pcs/pack has 2ml/3ml capacity with Top/Side refilling design. Mesh Coil,Unleash the Flavor. The mesh coil technology has a cloud volume increase of 23.7% and offers a longer usage lifespan. Each puff providesthe user with a consistent flavor restoration. Leak-proof Design. The latest design technology is adopted from the shell tothe internal mesh coil, which can prevent E-juice leakageand bring you the best vaping experience. It comes in 3 resistance values - 0.6 ohms for those who like big atomization, 0.8 ohms for those who like balanced taste and throatiness, and 1.2 ohms for those who like MTL (mouth-to-lung).