SMOK FETCH MINI Replacement Pods uses the most popular food-grade material PCTG, which is widely used in high-end cosmetics and food packaging. It has the advantages of safety, reliability, corrosion resistance and high light transmission. It has become the new material to replace traditional PC materials. PCTG can not only prevent US rays from changing the chemical properties of nicotine salts, but also resist alkaline corrosion of nicotine salts, it is an ideal material for making cartridges.