Celstar BS20E-100 type. This machine is designed for zigzag stitching and is considered a powerful piece of equipment in garment workshops: Main components in your machine: • Digital control panel (right side): Used to adjust the stitch type (Pattern) and its width (Size). The buttons (Up, Down, OK) allow you to navigate through the stored settings. • Width adjustment dial: The large gray dial on the machine body controls the extent of the needle's movement to the right and left. • Thread tension system: The part on the left above the needle; if the stitch is loose from the bottom, you will need to slightly tighten this regulator. • Reverse lever (bar tack): The small black lever on the bottom right is used to secure the stitching at the beginning and end of the fabric. Brand: Chinese Quantity: 2 0537840070