Mettler Ultimate Thread Case Poly Sheen No. 40 200m 96 spoolsThe Poly Sheen Kit 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. High chafe resistance and stays colourfast when subject to harsh treatments such as chlorine and bleach. Low risk of thread breakage and can be used with the latest high performance machines. Better elastic qualities and 50% higher tensile strength than rayon and can be