In this picture, we can see two green long hair wigs.

These wigs are the iconic hairstyle of Japanese anime characters and are commonly referred to as "green hair."

This hairstyle is very popular in Japanese anime culture, especially in works such as "Naruto" and "One Piece."

The green hair of these characters represents their personality and characteristics, and has become a part of their image.

Therefore, these green long hair wigs are not just a fashion trend, but also an important part of Japanese anime culture.