Mettler Metroflock polyamid thread, 100% polyamid, 910m per each spool. Mettler METROFLOCK Overlock Thread is a soft, woolly Overlock thread made of 100% polyamide. Its elasticity makes it the perfect for very elastic seams lingerie, sportswear and swimwear, bringing all your creations into shape. Also ideal for decorative seams. It comes in 21 colours. Furthermore, the Miniking spools from Mettler will fit any sewing machine.