Our company specilize in Filter balls. We have our own factory. The raw material is high quality polyester fiber. It has passed Reach Test. The production process is very detailed. The workers put the raw material into the machine, so that the raw materials are evenly dispersed. The workers should tear and pull more than three times to complete, so that the uniformly dispersed raw materials are beneficial to the filtering effect of the filter ball. And then the evenly dispersed raw materials will pass through the production machine. The filaments will be tied and cut to form the filter ball.