TH501 Disposable CBD Vape Transparent glass tank, oil quantity is easily visible. Non toxic lead-free center post, anti-corrosion. Tested in CA labs shows no heavy metal substances come to oil. The reduction degree of cannabinoid is as high as over 80%, brings big vapor and purity and smooth taste. 510 Cartridge,Electronic Cigarette,CBD Products. Specification: Battery Size : φ10.50×88.20mm Battery Capacity : 340mAh Charging voltage : 5±0.5V Average Power Consumption: 6W Battery Weight: 22.3±1g