- Easy to use and portable: compact and lightweight for effortless carrying and quick setup anywhere. - Versatile filling flow with alcohol: the filling flow mechanism allows adding alcohol for cleaning, and a cleaning brush is included for thorough pen cleansing. - Prevents evaporation for constant flow: designed to minimize evaporation to maintain a steady liquid flow during use. - Transparent sheath for clear visibility: see the liquid level and whether detergent or cleaning solution is flowing. - Clean the pen after alcohol use: flush the pen with alcohol and then clean to remove residues. Use scenarios - At home or in the office: fill with alcohol to flush a pen, optionally use detergent, then clean the pen with the included brush for a fresh start. - In the studio or workshop: monitor cleaning progress through the transparent sheath, use detergent as needed to remove stubborn residues, and flush the pen as part of routine maintenance. - On the go: carry the device to quickly refresh a pen during travel, ensuring consistent flow and easy post-use cleaning.