I remember being a kid and for some reason a toy wasn’t complete until it was glow in the dark. I’m fairly sure that had something to do with Nickelodeon toys being a big deal at the time. Well now that generation is all grown up and apparently now our grown up gadgets won’t be complete until we can find those in the dark too. You can purchase these in 3 packs and they won’t require any batteries. It’s just like the toys, they just need a bit of sun during the day and then they’ll glow all night long. You can purchase the set for $4.99 through Amazon.