Use 4 thread overlocking to create stretchable seams that move with the garment or 3 thread overlocking to finish raw edges.
Easy Threading
Colour-coded thread guides and clear graphics, make it easy to thread your machine. There is also an online video
Differential Feed
Set your machine to feed and stitch two fabric with different weights or properties together. Differential Feed Ratio from 0.7mm to 2.0mm