Premium Mettler Poly Sheen 96 Sewing & Embroidery 200m Spools Thread Box Set Kit Metter thread case POLY SHEEN contains 96 beautiful colours which have a length of 200m. POLY SHEEN has a much larger surface area to reflect the light, which is why it shines so beautifully. Furthermore, POLY SHEEN has a high tensile strength and gives your embroidery or decorative application an exceptionally long life.