1. Parallel type The eyelids are basically parallel to the upper eyelid margin. The eyelid line is designed so that the outer side does not exceed the outer corner of the eye. This is suitable for women with large eyes, high arches, eyebrows far from the eyes and thin upper eyelids. This is also one of the most classic double eyelids, similar to the “peach blossom eyes”, which are loved by young girls. The characteristics are narrow inside and wide outside, suitable for the eyebrow and eye distance is moderate, the eyelids are thin, the horizontal axis of the eye and the ground plane is a certain angle, the corner of the eye slightly upward, there is a feeling of glowing, very angry look. 3.Narrow inside and wide outside parallel type (flat fan shape) After starting from the inner canthus, it gradually extends outward parallel to the eyelid, this eye shape has the double advantages of parallel type and open fan type. 4.Crescent type The double eyelid line is curved at the inner and outer edges of the eyelid, while it is widest at the center. There is a difference between a slightly larger or smaller arc, and an incomplete arc in the inner and outer canthus. The heavy eyelid crease is close to the inner and outer canthus at both ends and far from the lid margin in the middle, forming a crescent shape.