If there is no bone seam, first pierce the needle, then pierce it in the area of 5 mm in front, then straighten the thread. The seam should be in a straight line, and the needle should pass through the other side of the cloth at a distance of 5 mm, then straighten the thread, and repeat this step until the last stitch is knotted. When the needle presses the needle, it will form a neat needle distance, sew to the end, and then tie a knot at the last needle. Boneless sewing is the method of using flat needle sewing. In fact, this method is still relatively common in daily life. Many people use this method to make clothes for their children, which will make the clothes more comfortable. Of course, we can also use sewing machines. Nowadays, sewing machines have more functions, faster sewing speed and better effect.