The yarn tensioner is designed for keep and adjusted the yarn tension when yarn feeding. It can be used for various yarn in knitting machine. The thickness of the spring can be customized according to your yarn needs. The yarn tensioner is produced with high quality material to ensure a perfect usage for customer. Compared to some of the old style tensioner, our yarn tension has a new design that there is the groove of the cone ceramic core that the groove can ensure the yarn move directly the way you need it to be, to feeding the yarn in full accordance with the requirements. Besides, we use the ceramic ones, which can avoid the problem of yarn breakage caused by yarn friction. This save cost and save time.