The Eleaf iStick Pico X retains it's small size in box mod form, with a new intelligent coil protection function. Having an ergonomic design with a rubberized grip, the iStick Pico X gives you a comfortable and smooth feel when you hold it in your hand. It requires a single 18650 battery and can fire up to 75 watts! Matched with the MELO 4 Tank, it utilizes a new kind of EC mesh coil, the iStick Pico X kit creates massive clouds and immense flavor. To fill the MELO 4 Tank, you only need to slide the top portion of the tank back, to reveal the fill port with your favorite E-liquid!