All products have excellent thread threading and air functionality. This is a popular sewing machine that receives many inquiries! Get it before the "likes" accumulate! (╹◡╹) I'm listing many sewing machines, so follow me! Highly popular Baby Lock sewing machine! Test sewing is smooth, and the stitches are even, resulting in a beautiful finish. It can beautifully serge knit fabrics, jersey knit, knits, fabrics that stretch sideways, twills, and plain weaves. You can easily handle smooth fabrics for children's clothing, achieving a beautiful finish☆ The best feature is that with a push of the air lever, the troublesome threading is done in an instant with the power of air, making it incredibly easy. Once you use the air threading, you won't have to squint with tweezers (╹◡╹) You won't be able to go back to other serger machines☆ This is the best for beginners to professionals☆ Maintenance is thorough, and I'm selling it at a low price, so transactions are quickly decided. Of course, it's first-come, first-served. ■ Sewing Machine Features Uses 3 threads Upper and lower looper air threading Needle used: HA×1SP Overlock width: 3mm ~ 7.5mm Feed amount: 1.0mm ~ 4.0mm Snap-on presser foot replacement Upper knife release possible Rolled hem switching dial Rolled hem Cording lever Manufacturer: Inoujin baby lock★BL350 Switch: Foot control Light: LED equipped ☆ー★ Product Condition: The upper and lower loopers are also cleaned. I've maintained it with the user in mind. Product Features: After purchase, I provide a message board. Of course, I also support those who are inexperienced, offering advice on how to use it and resolving any troubles. More and more people are aware of this, thank you very much! Do you all know? Usually, with unmaintained used machines, the upper looper will wobble when you pinch it and move it left and right, but this one doesn't wobble (╹◡╹) About the product: Air threading always works. I check the air threading during maintenance, after maintenance, and when handing it over, with triple support for peace of mind (^-^)v (˃̵ᴗ˂̵) ☆ーーー★ Warranty: ① 3-month warranty☆