Our black double-ended seal eyeliner is carefully formulated from acrylic (ester) copolymers and propylene glycol. Designed specifically to help dry quickly and reduce the possibility of application. The usage method is extremely convenient: Please shake the pen well before use. Press the end of the eyeliner with the end of the seal. Fill the eye line along the base of the eyelashes with the tip of the pen and adjust the details. And its pen tip is exquisite and the lines are smooth and natural. It has a seal and a pen tip, completing the makeup in one stroke.