Glow In The Dark Machine Embroidery Thread 100 Yards-Yellow. COATS&CLARK-Glow In The Dark Thread. This is a polyester 40 weight thread. Machine Embroidery Thread, Quilting Thread, Machine Embroidery Designs, Embroidery Machines, Embroidery Ideas, 100 Yards, Sewing Hacks, Sewing Tips, Sewing Ideas