Floriani Polyester Thread Over 300 colors of beautiful Embroidery Thread. Five year dye lot guarantee color fast and strong Floriani 100% Polyester Embroidery Thread has a beautiful sheen that is brighter than most rayon's, and yet it has all the strengths of 100% polyester. It is manufactured with a tinsel strength designed to run smoothly on any machine including high speed commercial embroidery machines. Floriani 40 Weight Polyester Threads are available in 1000m/1100yds Cone Due to the difference in monitors, the color samples shown are for reference only. Please refer to a color card for exact color matches.