The Ooze Slim Twist Batteries are a simple and discreet battery option that are great for use with pre-filled thick oil and CBD cartridges. The batteries have an adjustable variable voltage twist dial on the bottom and a 230mAh capacity. Features include a pre-heat function, 5 click locking function and standard 510 threading. Operating instructions are printed on the packaging. Covered by the Ooze lifetime warranty. This item is sold as a 48 piece display.