Disposables are also called all-in-ones or pens. These include a cartridge with a built-in battery, come pre-filled with concentrate, and are ready for immediate use. They cannot be refilled or recharged. 

Cannabis-infused vapor inhaled from a liquid cannabis concentrate heated with an electric-powered device or battery. Vaporization allows for inhalation of higher-potency concentrate with a delivery method that is an alternative to smoking, but typically with the same immediate onset. Duration of effects can last an average of 1 - 3 hours.

Description courtesy of Jane