3 Review(s)

Perfect sewing machine tension occurs when the top and bottom threads are perfectly balanced. That means you shouldn’t see any little loops on either the top or bottom of your fabric and the stitching should look even on both sides.Sub Tension Unit Foot Controller with Thread Trimming Function Automatically trim thread by pressing the controller with your heel.Automatic thread trimming can be turned off by attaching a foot switch stopper.Stronger threads can make for unruly stitches.Sub-tension creates steady stitches by putting an end to stitches that come up. Even Feed Foot (Accessory bag)No matter the thread type, sub-tension ensures stitches are sewn with a balanced thread tension.Achieve perfectly balanced threads with every stitch.