Yocan UNI Pro is a cartridge vaporizer that is compatible with all types of 510 vape cartridges. With adjustable cartridge opening, adjustable cartridge depth, and variable voltage the UNI Pro is the ultimate cartridge utilizer. The Yocan UNI Pro suits cartridges with a wider diameter than 11mm and with an oil capacity from 0.3ml to 2.0ml.