Amann-Mettler Winter Kit consists of 8-164 yard spools of Silk Finish 50wt Cotton Thread. It is a pure cotton thread made of 100% long staple Egyptian cotton with the soft sheen of natural cotton. The natural fibre is gentle on the skin. Feels soft, smooth, and silk-like. Due to the mercerization process SILK-FINISH reaches a high breaking resistance, has reduced shrinkage and is ironing resistant. Colors: 4000, 0348, 0415, 0331, 2000, 0350, 1316, 1304.