This product is an overlocker with an air threader to automatically thread the loopers. It‘s never been so easy to get started. The B64 airlock has even more to offer: the free arm makes it easy to sew sleeves and cuffs. You will love the large work surface to the right of the needle and the slide-on table. 5 LEDs ensure the working area is brightly lit. The presser foot can be lowered and temporarily raised using the Bernette Free Hand System so that your hands remain free to guide the fabric. With 16 different stitches to choose from and a sewing speed of up to 1300 stitches per minute, you will finish your project in no time!.