Six spools of shimmering thread coordinate perfectly with MJ Kinman's July Ruby Fat Quarter Set eQuilter product code FAFQBRUB to complete the Birthstone Series pattern eQuilter product code MJPATRBY. 80/12 needle recommended. 'MJ Kinman Birthstone Series - July Ruby' Thread Set, includes six 250 yard spools of 40 wt Sulky Rayon Thread.