Trademark Home Glow-in-the-Dark Non-Slip Mat, 4 Pieces

We got the package and put two out to allow them to "charge". I figured they need some sun to make them work. That night we went out to see how they were doing and they really did show up. We are having some work done and cant put them on the back steps until that's done but they make a big difference in being able to see when the light is not good. I think anyone that has a place where the light is not good could sure use them but it must be a place that gets enough day light to activate the glow in the dark feature. Very pleased with them.