The Easy Vape Knob is modeled after the traditional, hands free box-style herbal vaporizer. It also features a pulsing blue LED lit knob which lets you know the temperature status. This vaporizer is made of a durable polycarbonate plastic, offering durability and reliability, while also being a lightweight masterpiece. The Easy Vape Digital Vaporizer was made with replaceable fuses so that surges or electric fluctuations will not burn out the system only blow the fuse. This expands the life span of the the Easy Vape Vaporizer significantly.