Polyneon No.40 1000m spools. Madeira's 100% polyester Polyneon No.40 1000m spools. Madeira's 100% polyester embroidery thread, Polyneon is constructed of a specially embroidery thread, Polyneon is constructed of a specially developed raw material which eliminates looping, puckering developed raw material which eliminates looping, puckering and virtually all thread breaks. Suitable for almost any and virtually all thread breaks. Suitable for almost any application, Its extraordinary dyeing process produces application, Its extraordinary dyeing process produces stunning and ever-changing colours throughout the whole stunning and ever-changing colours throughout the whole spool. Give a magical appearance to all your sewing with spool. Give a magical appearance to all your sewing with “Astro Colour” - every embroidery will be a unique “Astro Colour” - every embroidery will be a unique masterpiece. masterpiece.