Gail Yellen’s Thread Fusion provides the ability to use up to four mini spools or mini cones to create beautiful combinations of threads. (Threads are not included). Use this decorative thread blending tool for beautiful overlock and cover/chain stitching, for machine embroidery and to create stunning thread painting. Great for multi-thread topstitching for surface embellishing. Useful with all types of threads and can be used on all domestic sewing machines serger, long arm and embroidery. Position over machine thread vertical spool spindle or with a thread stand.