Paternayan persian wool is the classic virgin 100% wool thread. Each strand has 3 plies that are easily divisible. This long wearing wool is good for upholstery, rugs or anywhere that might get a lot of use as well as any needlepoint or embroidery project. Each strand is roughly 30" long. In needlepoint projects, one ply covers 18 mesh, 2 plies will work for 13 mesh and 3 plies for 10 mesh. Prior troubles with our distributor have been (mostly) solved and we have (almost) all colors in stock. Hurray!