Apparently, there are several vendors that are offering this new "black magic" black cotton wick. I have just seen it appear on FT & am providing the link & pics for informational purposes, so vapers here know what to avoid: https://www.fasttech.com/products/1/10024817/5375600-black-magic-cotton-wick-for-rba-atomizer DO NOT USE IT IT IS A HEALTH HAZARD! The problem is that this cotton contains activated carbon, which when inhaled can cause bronchitis, pneumonia & lung disease or be fatal! Here is a link to a case study of someone who developed "popcorn lung" after inhaling activated charcoal, as used in this cotton: https://www.ncbi.nlm.nih.gov/pubmed/2766830 More links: https://www.ncbi.nlm.nih.gov/pubmed/3139147 Fatality by inhalation of activated carbon. https://www.ncbi.nlm.nih.gov/pubmed/10195487 Pneumonia from inhalation of activated carbon. Please do not use this wick, for your own safety, we have enough variety & sources of safer wicking materials to use, this gimmicky wick needs to be boycotted.