Pulsar Clutch 510 Variable Voltage BatteryThe sleek Pulsar Clutch Variable Voltage Battery is ready for high speed action, to drop a gear and disappear, leaving a trail of smoke through the night. These oil vaporizer batteries fit perfectly in the palm of your hand, and the full metal body comes in a variety of cool color options. The Clutch has a easy grip button that controls both power and voltage strength; additionally, the body is specially shaped to prevent rolling on flat surfaces.