Carts come in a standard 510 cart that fits most vape batteries. [Recommended battery settings for carts: 2.8 - 3.3V. Do not vaporize rosin at higher temperatures, as it can “burn off” the precious terpenes and aromas we are working hard to preserve; higher temps can also cause an undesirable “burnt” aftertaste. Vape cartridge contains concentrated rosin oil that is heated by a battery and vaporized for inhalation. These products are very potent and are designed to be consumed in 2-3 second puffs.