This BERNINA L 850 Air Threader Serger/Overlocker is the perfect addition to your sewing collection. It is practically new, used twice (owner realized didn’t have a need to serge projects), but it is in great working condition and ready for its next owner. Includes trolley carrying case, accessories (see photos) and “The Big Book of Serging” by Bernina.This machine is perfect for creating professional and clean edges on your sewing projects. With its air threading system, you can easily thread the machine without any hassle. The BERNINA L 850 is also equipped with a differential feed, which allows for smooth and even fabric feeding. This serger/overlocker is perfect for those who want to take their sewing to the next level.