Singer Spun Polyester Light and Dark Hand Thread Set, Set of 12, Assorted Colors Polyester light dark hand thread set. Polyester-wrapped core-spun construction makes sewing trouble free. Ideal for all fabrics. 12 spools of assorted dark colors with 25-yard per spool. Includes 3 hand needles and 1 needle threaded. 12 spools of assorted dark colors with 25-yard per spool. Includes 3 hand needles and 1 needle threaded. All thread is colorfast and washable.