FEATURE: 1 x atomizer base 1 x evaporation chamber (2 pieces) 1 x SS composite tank (3 pieces) 1 x polycarbonate window (additional middle section of the composite tank) 1 x top cap for 510 mouthpieces 1 x 510 drip tip 4 x spare O-ring (big) 2 x spare O-ring (small) 2 x spare screws M1,6 (for mounting the wick) 2 x refilling screw M2,5 1 x flathead screw (for air control)