You must be over 18 to purchase this product. We have an effective and monitored age verification process provided by VerifyMyAge. We will not sell to persons that do not meet the age restrictions for this product and by continuing with this purchase you hereby consent to the processing of your personal data for age verification purposes. These coils are available in a range of different coil types: M1 Mesh – The coil resistance is 0.15ohm and is 19mm*31.5mm in size. It is suitable for devices set at a wattage between 40-70W, best vaped at 65W. M2 Mesh – The coil resistance is 0.2ohm and has dimensions of 19.77mm*31.15mm. It has a suitable wattage between 60-90W, best vape at 80W. M3 Mesh – The coil resistance is 0.15ohm and has dimensions of 19.7mm*31.15mm.