the juki 4-thread is a 3-needle 5-thread industrial overlock sewing machine. Manufactured by Juki a world leader in sewing quality and technology this machine is intended solely for overlock stitching of light to medium weight fabrics. It is designed to perform at high speed with excellent reliability and consistency. With its differential feed capabilities the MO-6716S is versatile enough to handle a wide range of fabric types from stiff to stretchy. It is important to note that this machine will only perform an overlock stitch and is not intended for any other stitch type. This item is sold as a complete unit which includes the machine head table stand motor sewing light drawer and all necessary components installed and ready to sew. Please be advised that this is industrial equipment. Minor blemishes and scratches on the table and legs may occur during the production process and these do not indicate any defect or deficiency in the operation of the unit. Industrial clutch motors produce noise. Table color may vary depending on availability.