DESC: light weight mulitfuntion overlock machine 800 stitches per minute differential feed improves results when sewing stretch knitted or thin fabrics sews from light to medium rolled hem capability stitch fuctions (4/3 tread) 3- thread rolled hem 4-thread overlock adjustable stitch width (4.0-7.0mm) adjustable stitch length (1.0-5.0mm) overedge stitch width (6mm l. needle & (3.8mm r. needle) color coded threading telescopic thread holders with 4 thread spools electronic foot control