Packwoods Twist Batteries Each have a mixed design, with a random design being received from available options. They are designed specifically for Packwoods Twist cartridges and have a sleek and compact cylindrical shape. The batteries have a 510-thread connection, a single power button for easy operation, and are rechargeable with a USB charging cable. They feature a pre-heat function for smooth vapor production and variable voltage settings for customization. The specific design received may vary from the images shown. These batteries provide a stylish and functional vaping experience for Packwoods enthusiasts.