A defined eyelid line is particularly flattering. Those who already own the Designing Liquid Eyeliner from SENSAI can now breathe new life into it with the Designing Liquid Eyeliner Refill. The refill cartridge was specially designed for the eyeliner. The liner ensures very precise and smooth lines thanks to the fine applicator. This makes it effortless to apply in just the twinkling of an eye. If you would like to refill the liner with the Designing Liquid Eyeliner Refill, unscrew it at the lower end and carefully pull out the cartridge. Then insert the refill cartridge.