I bought these to go with the two Nova Starter Kits I purchased for me and my husband. We are both very heavy smokers as former I reckoned we needed a few spare batteries to help us! My husband loves the white Because they look more like a real cigarette than the black ones I ordered with the kits and That Seems to help him with his quitting. I like Both colors. They are very pretty with a nice pattern and are solid and well made. We always have two on the go and two charging. They take about 3 hours to charge so it really helps to have an extra batteries in case you ever run out!