Backwood V2 510 batteries have a mixed design and are designed for Backwood V2 510 cartridges. They have a sleek and compact design, making them portable. The battery has a 510-thread connection and a single power button for easy use. It is rechargeable and comes with a USB charging cable. The batteries have a pre-heat function and variable voltage settings for customizable vaping. The specific design received may vary, but they offer a stylish and functional vaping experience for Backwood enthusiasts.