Features: Prevent slippage between layers of fabric. It can prevent the fabric from wrinkling during reverse stitching and seaming. Synchronized presser foot helps to feed cloth more smoothly. The cloth is clamped by the upper and lower feeding teeth and is fed back synchronously, so there is no need to fold the cloth. Suitable for low-shank sewing machines, like Brother, Baby Lock, Singer, Kenmore,Janome etc. The side cutter attachment will trim fabric while it is sewing a seam. Easy to use, just attach to the machine and replace the pressor foot. You can still look at the needle while sewing from the front side. Suitable for thin, elastic and medium-thick fabrics.