turnpen disposables pack a big punch. With abundant clouds, consistent pulls, and 100% live window view, this pen is practically perfect in every way. No cotton, glue, or heavy metals - ever. Free and easy airflow, 1.0 ml oil capacity, USB-C rechargeable, 150 puffs per charge, 1-year disposable, LED display, and clearview window so you never miss a drop. Powerful to the last puff, clean, convenient, pocket-comfy, with no buttons, no BS.