Op lichtknopjes, behang en op de klok is er niets van zichtbaar in het donker. Helaas een miskoop

E' una gelatina lievemente fluorescente...non mi è servita.

Der Stift hält was er verspricht. Doch für Buchfalttechnik, wofür wir ihn brauchen, nicht ganz so gut geeignet, weil zu grob. Passt sich der Oberfläche nicht an.

Est bien phosphorescent cependant je ne m’attendais pas a ce que ce soit en « gel » donc le stylo n’a pas survécu très longtemps

All Good

I have this great little thermal coffee container that keeps coffee hot for hours. It is also spill-proof when I click the button at the top. All is great with it, but the coffee comes out on either one side or the other, so when you drink it you need to be sure your mouth is positioned where the slit is located.To solve this problem, as many people who use this have, you simply make a mark where the opposing slits are located and no more problems, right? Well, what about when you're drinking your coffee in a dark room in the morning, before you face the world of light while still waking up? For a while, I was keeping a small flashlight by my bedside to use when I thought I lost track of where the slit is located. If you miss by too much, you will have coffee running down the side.The flashlight idea, while it worked, was annoying. After all, if you want to wake up gradually in the dark you don't want to occasionally use a flashlight. That's when I thought glow-in-the-dark. I was on a mission to get something like a small marker that I could use just like the dark marker I used for when it was light out. I couldn't find anything like this in local stores, so I thought about Amazon to see what they might have. You never know what you're going to get based on the description and photo. So for the $12 or so, I figured I would take a chance on this Sakura marker. I was totally ignorant about glow-in-the-dark markers and didn't know what to expect.Well, I have to say this thing is great. It goes on like a soft crayon. Just two swipes on my coffee mug and that was it. That was months ago, and it just has not worn off, even after many washings. And, it always glows in the dark, just like it's supposed to. I'm not sure what the technology of this is, but I always thought you needed to charge it with light for it to work. I guess not since the mug sits all night in the dark and the glow is always strong.So I've used about 1/1,000,000th of what's there, wondering how I will use the rest of it. Eventually I'll consider another use for it, but for this use, I'll tell you that it was worth every penny. I'm a fan!