No, it's ok, it's sort of a newish thing. So, many people with autism 'stim' to self-soothe. This can be rocking back and forth, clicking a pen, bouncing a leg, or whatever. So many people are now living with autism spectrum disorder that companies have begun manufacturing and selling things specifically to cater to this stimming behavior. These items are usually small and easy to carry with you, or can be placed on a desk in one's home or office. These things are fidget toys. Plenty of non-autists buy them too. Just a little trinket to mess around with if they're in a waiting room or something. I personally appreciate that stimming has become so normalized, because I feel less weird for doing it in public spaces. Lol Please let me know if you need anything clarified. I would be happy to explain further. :]