AGT self-charging Glow Discs were specially designed to act as passive light sources. These glow in the dark discs increase safety in low-light areas and after just 10 minutes of sunlight will glow for over 15 hours! They can be easily affixed to ANY surface using a screw or nail. Excellent for use around pool decks, wood decks, stairs treads and walkways. * Pricing is in US$ Funds exclusive of Shipping & Handling.