Our MicroQuilter color card is a physical card wound with actual thread to be used as a reference. Includes all 30 colors and sold at our cost. MicroQuilter description:MicroQuilter is a 100 wt. /2-ply extra-fine polyester thread designed for invisible machine applique and detail quilting. It is an extremely fine thread that can be sewn with a very small needle renders the thread virtually invisible. It is the preferred thread for micro stippling and miniatures. MicroQuilter is available on 3,000 yd. cones.