Thank you for viewing. Core thread (eyelets, buttonholes) used for the button areas of clothing, also for making small items. Kingspan sewing machine core thread 20/6 s 500 m roll, 4 pieces (3 colors) in a set. New, unused: The plastic wrapping was removed for photography. ◎ King Color No. 721: Brown系 (brown-based) 2 pieces Color No. 723: Brown系 (brown-based) 1 piece Color No. 20: Cream系 (cream-based) 1 piece 100% polyester Instant purchase OK Please consider after viewing the photos.