Now I will make a brief introduction of skin top workmanship: The skin top is constitutive of three layers. The hair is knotted/tied on the middle layer. Then the hair is pulled out from the outer layer, which is Chinese silk. It seems the hair is growing on the scalp, and we can't see the knots from the outer layer because it has covered the knots, which is tied on the middle layer. The inner layer is a kind of net to make customers feel comfortable to wear.