This thread can glow for several hours after absorbing enough light., the light will be more weak and weak as time goes by. Because the power is getting less and less, then it needs to be charged more light again to glow well.
We use all Eco-friendly materials to produce. You can embroider it in your bags, clothes, pillows...Do not worry about it. It could never hurt your skin nor your health. It is ideal for Halloween, birthday, and various theme parties，and popular with joggers and trick-or-treaters. Glow in the dark thread only glow in the dark evening, will not glow in the daytime shadow place.
