This overlock sewing machine offers professional-grade performance with a sewing speed of 3000 stitches per minute, ensuring efficient and precise stitching. It features an adjustable track length of 1.5-3.2mm and a hem width range of 3.0-4.0mm, providing versatility for various fabric types. The machine uses 40/2 polyester thread and accommodates a seam thickness of up to 4mm, making it suitable for heavy-duty projects. It measures 255*210*270mm, weighs 13.5kg for stability, and includes a 14# needle and a presser foot stroke of 4mm for smooth operation. The package includes one overlock machine and one speed regulator for easy control. This product is ideal for home sewing and crafting, delivering reliable results without complex setup.