100 wt. polyester thread. Designed for Quilting and Applique.
MicroQuilter is a 100 wt. extra-fine polyester thread designed for invisible machine applique, detail quilting, and stitch in the ditch. It is an extremely fine thread that can be sewn with a very small needle rendering the thread virtually invisible. MicroQuilter is noticeably strong, especially considering its thin diameter, and is the preferred thread for micro stippling and miniatures
keep in mind that the smaller the thread the smaller the needle.
micro tex needles are great
MicroQuilter is very forgiving because of its fineness but is also very strong.