The OG Four 2.0 Rip N’ Go pen is small in stature but mighty in performance. The OG Four 2.0 is a sleek portable vape pen that delivers a smooth vapor.Simple to load, just unscrew the mouthpiece and gently place a rice grain size amount of concentrate into the ceramic chamber – do not over-pack! Screw the mouthpiece back on. After loading your atomizer, press the power button five times consecutively to turn the unit on. Hold down the power button and inhale slowly through the mouthpiece.