Color Changing Nee-DOH heart

So I had gotten this fidget from Target today on a whim. However, after roughly a 30 minute walk outside, I noticed these specks appeared on the fidget and on my hand. I was able to wash it off with water for the most part. Since I was holding the fidget in my right hand the whole walk and my left hand didn't have the specks, my guess is that this fidget already showed wear and tear just from a 30 minute walk. Maybe I was squishing it harder than I do with my Nice Cube and Dream Drop (Not pictured) because this fidget changes color when squished? Maybe my fingernails made it worse than it normally would be? Maybe it being less than $10 at Target meant it was a lower quality than others of its kind?

Overall, I'm sadly disappointed by this one because of the fact that it left a mess on my hand that I had to wash off. It looks cute, but I prefer having a fidget that doesn't leave a mess on my hands after what felt like such a short time after purchase. I would've expected this kind of mess to come from something like slime, putty, or kinetic sand!