The Vapefly Mixed Firebolt Cotton is a well made wick material for coil building. It is super absorbent and delivers great flavor. It has been arranged well in advance, so you do not need to measure and twist the cotton any more. The Mixed Firebolt Pre-loaded Cotton also comes with different diameters, which can satisfy your various needs. Best choice for DIY lovers. 

Material: 100% Organic Cotton
Diameter and Quantity: 2.5mm, 7pcs
                                       3.0mm, 7pcs
                                       3.5mm, 7pcs