Wigs can usually be classified based on various factors such as material, length, color, and purpose. Here are some common types of wigs:

1. Material classification:

-Natural human hair wig: Made from real human hair, it looks more natural.

-Synthetic fiber wig: made of synthetic fiber materials (such as polyester fiber), relatively inexpensive.

2. Length classification:

-Short hair wig: The length is usually below the shoulder, suitable for pursuing a simple and sharp style.

-Medium length wig: The length is usually between the shoulders and chest, which can show a soft shape.

-Long hair wig: longer than the chest, it can present a romantic and elegant effect.

3. Color classification:

-Natural color wig: a color similar to natural hair, such as black, brown, gold, etc.

-Fashion colored wigs: have bright and vibrant colors such as purple, pink, blue, etc.

-Gradient wig: Using two or more colors for gradient, presenting a special effect.

4. Usage classification:

-Daily makeup wig: suitable for daily use, adding personal charm.

-Makeup stage wig: used for special occasions such as stage performances, dramas, or masquerade parties, with a more exaggerated design.

-Medical wig: a temporary or long-term replacement for people who have lost their hair due to illness (such as hair loss).

Please note that the above are just some common wig categories, and there are many other types and specially designed wigs available on the market for selection.