If you are looking to use a variety of oils you will need to stock up on our o2Vape oil cartridges. These oil cartridges are refillable and last up to 6 months. The best part? You can fill the oil cartridges with any of your favorite oils.
o2Vape oil cartridges are compatible with any 510 thread vape pen.
300 to 400 Perfect Puffs per Cartridge – Filled cartridge lasts up to three weeks depending on daily use.