4-Thread Overlock Sewing Machine Baby Lock Ihojin BL-515 BL Series (Made in Japan) The instruction manual can also be viewed on the Baby Lock website. Each part has been oiled, inspected, and maintained. Test sewing has been completed and it is in good condition. A foot controller is also included. All accessories are shown in the images. The thread in the images will be sent with the machine. Thread is not included. 【Air Threading System (Automatic Air Threading)】 By simply pressing the lever, the thread can be instantly threaded using air pressure. This revolutionary system makes threading the loopers, which used to be troublesome, easy! 【Easy Threading (Automatic Needle Threading)】 Threading the needle is also easy! 【Differential Feed Function】 Beautifies the finish of knit fabrics and bias cuts that tend to stretch. It is also effective for gathering. 【Safety Stop Mechanism】 The machine automatically stops when the front cover is open or the presser foot is not lowered. 【High-Performance Overlock Sewing Machine】 This baby lock overlock sewing machine uses 4 threads and can handle a variety of sewing needs. The automatic thread adjustment function makes it easy for beginners to achieve beautiful finishes. 【User-Friendly Design】 It is equipped with an intuitive dial-type thread adjustment function, making settings easy. The compact design allows you to effectively utilize your workspace. 【Multi-Functionality】 This machine can handle a variety of fabrics and can be used widely, from home use to professional use. - Brand: baby lock - Type: Overlock Sewing Machine - Function: Automatic Thread Adjustment Function - Number of Threads: 4 - Dial: Thread Adjustment Dial Thank you for viewing.