3,5 inch DIY Glow-in-the-dark Slijm - Verpakking van 6

The glow powder was way brighter than I expected after just a few minutes under a lamp, and my kids loved watching the slime change colors as they mixed it themselves. The instructions were simple enough that my six-year-old could follow along with only a little help.

My three-year-old had a blast mixing the powder and watching it turn into a slimy, glowing blob. The instructions were clear enough for us to make all six containers without a mess.

The glow is way brighter than I expected once I mixed the neon powder in, and the gooey texture kept the kids entertained for a solid hour. Each kit comes with four powder packets, so there's plenty left over for a second round of experimenting.