Janome Air Thread 3000 P

Serging Simplified. Every project is easier with the right tools for the job, and the AirThread 2000D provides all the tools you need to deliver professional quality finishing. With Janome's One-Push Air Threading System the tedious threading of upper and lower loopers is a thing of the past. The 8-Piece Feed Dog System will easily grab and feed your fabric, from slinky knits to denim, the AT2000D will meet the challenges of your sewing projects. 

The Built-in One-step Converter makes changing from 3-thread to 2-thread applications easier than ever. And with a built-in needle threader, manually threading your serger needles becomes easier than ever. One unit provides threading of both the right and left position needles.

https://www.janome.com/machines/sergers/at2000d/