Question about the extent of wig hair products

In addition, I want to share with you that the magnitude is not the only standard, but an important criterion. Too high and too low is not a good thing. The range is too high, the price is too expensive, and the customer's ability to accept will be tested. The magnitude is too low and deceptive. Also test the customer's ability to accept. I don't want your customers to be taken away by others at any time. It is necessary to master a basic principle: the amplitude is lower, the proportion of this file can't be lower than 15%, the stalls are more, and the shortest hair can't be lower than 4” The real person can send a block to accept the pass, and the minimum can not be less than 25% of the range. The general hand hook products require the third gear range. The fourth gear is the lower limit.