Gutermann Mara 70 is used to make perfect seams. Use on outerwear and visible seams like hand sewn buttonholes, gimps and ornamental seams. Constructed with micro core technology, has a fine cross section for smooth seams, has a silk like sheen, dust and lint free and is rub and abrasion resistant. Made from 100% polyester. Available in a variety of colors and sizes. Looking for Standard White? We recommend 800. Choose 000 for Standard Black. Please note: actual colors may vary from picture due to computer setting variances.