The ultracompact and powerful KandyPens Slim offers stealthy liquid concentrate on-the-go. A refillable cartridge can be loaded with your favorite liquids, while universal 510-threading promises compatibility with most standard cartridges. Two included applicator bottles make loading clean and easy. An air-activated 180mAh battery delivers on-demand hits. A lifetime warranty stands as a testament to the Slim's quality. Sexy, slender, and reliable, the KandyPens Slim fits right into your life.