It depends. The 7/64, commonly used for whoopie slings, has only eight strands, but diameters beyond that have twelve. The Samson documentation invariably lists Amsteel Blue as a class 2 12-strand product. However, that documentation often does not include the 7/64 size because it is too small for the marine and industrial use that Samson serves. Class 1 ropes are manufactured from polyolefin, nylon and/or polyester fiber. Class 2 ropes (including Amsteel) are manufactured from high-modulus fiber, such as Dyneema Composite Fabrics.