Brighten up your projects with Wonderfil's Flash Reflective Polyester Thread. This 40-weight thread reflects brightly under lights at night, making it ideal for safety garments or wherever a reflective element is desired. Woven throughout the polyester thread is a second strand of reflective material that gives it its luminescent glow.

Each spool of Flash Reflective Thread holds 150 yards (137m) and can be used with domestic, longarm, and midarm machines. For the best results, Wonderfil recommends that you use nonstick or topstitch needles in sizes 12 to 16. Choose from eight fun colors: gray, red, green, purple, orange, pink, blue, and brown.