Glowy 40

Glowy 40 Thread. Universal machine embroidery thread for all embroidery motifs which glow in the dark. The embroidery thread stores sunlight and UV light and glows in the dark. The duration of the light exposure determines the intensity of the luminosity. Guaranteed for up to 50 wash cycles without reduction of the luminosity. Recommended needle and needle size: machine embroidery needle NM 75 - 90