The quality of pepperball is good or not, diameter tolerance is one of the main detection indicators, that is to say that pepperball is not very round, because pepperball is a very high-tech product, the production process is quite complicated, airsoft bb material is filled by a certain Weighting agent to ensure that the weight of pepperball can reach different weights. There are several reasons why apepperball is not round. Starting from the very beginning of the mold, because the number of molds is too high at one time, if the design of plastic pepperball mold is unreasonable, it will cause pepperball. Some blanks have large dimensions, some have small dimensions, and small-sized processed pepperball are naturally smaller than airsoft bb. Larger sizes increase post-processing time, directly increase costs, and reduce efficiency. The second process is Grinding the ball machine for grinding, if the accuracy of the grinding machine is not enough, the precision of the naturally processed pepperball is not enough. Therefore, the customer must select the pepperball produced by the regular manufacturer to purchase the pepperball shell, and the quality is guaranteed.