Just FYI: I've updated this*several* times over the years.I work in sales at a bank and regularly give these out to kids. If they're getting antsy at the 'teller' line (just a PSA: most banks don't have tellers anymore, they're very capable 'service oriented' bankers), goofing off on the couches, running around my office like wild gremlins, etc. I'll even excused myself from an appointment for a moment (when it's especially bad) to go give a couple out. I work in a (my) incredibly small town, mainly in investments, and it not uncommon to see small children come in with grandparents.It's not candy so I don't have to ask grand/parents first, and they're always grateful to have someone acknowledge that they're just children being children. I'm a mom, I get it. It's frustrating, embarrassing, and you just feel *bad* for everyone else (and your kid) when you have a small child that's struggling with being stuck in dull places like a bank. I truly enjoy the comments of "how many do you have" or "you're obviously a parent". I have colleagues that will come and ask if they can take a couple if they have/ notice a situation it would be helpful. They work REALLY well.They're just a fun and cheap toy. I go through a box or so a month, and it's 100% worth it from a revenue generating standpoint for me (literally one sale originated from it would make the cost worth it for many years), but more than that it just genuinely makes me happy.**It's worth noting that I also have many coloring books, giant box of crayons, cars, etc, but these are absolutely the "main attraction", and I NEVER use this as a sourcing method. People just do business with people they like, and people appreciate people who have compassion for children.*****1/11/24***I've updated my main review many times (including today) without differentiating dates, but I just wanted to *separately* point out that although these are AMAZING, I have bought from many sellers and ALWAYS go with the cheapest ones. I've even debated buying them in bulk from the manufacturer, but I'm honestly just too lazy to coordinate that/make a space in my house. I've never noticed a difference in quality, regardless of seller. I look at what I've spent in the past andI do the math every time to find the cheapest one.I'll post my average cost per track later, but I'm about to go put this as a review on all of the other ones I've purchased from. *They're all the same*