Description Free Arm: Removing the auxiliary bed enables free-arm sewing. This is convenient for sewing cylindrical pieces, attaching sleeves, hemming pants, and more Cutting Width: Adjusting the position of the knife allows you to beautifully finish both overlock and rolled hemstitching Differential Feed: Adjusting the differential feed allows you to sew beautiful finishes including stretchy fabrics such as knits and georgette. Adjustments can be made even while sewing Foot Pressure: The presser foot pressure can be adjusted according to the fabric. Adjusting the pressure to lightweight, medium weight, and heavyweight fabrics allow you to sew beautifully Lower Looper Threader: Threading the lower looper can easily be done by operating a lever