The ceramic Heart rod is created from a porous white glazed ceramic. A plastic ring constructed from polypropene sits beneath the tank. There's an o-ring produced from a silica gel compound that can help seal the ceramic rod in the plastic ring at the base in the cartridge. And https://devinbozkt.therainblog.com/26381518/the-2-minute-rule-for-marijuana-edibles-and-weight-loss