Here to simplify your polish French smile lines, All Season’s Nails’ Instant French Manicure Pen lets you apply white polish quickly and easily. The pen makes smile lines easier and faster, and provides a bright and strong white color for eye-catching Frenches. Just gently depress the pen’s nib to bring out the white color, then use it like a pen to make the smile line. The pen also makes it easy to adjust the smile line’s thickness.