Unique yarn clamping mechanism can adjust tension freely according to your demand,and make the loose stitch even and artistic,the tight stitsh has the elasticity and not so easy to broken.

• 独特的夹线机构可根据您的需要任意调节夹线松紧度。使松的线迹均匀美观，而紧的线迹更富有弹性且不易断线。