I got these for my grandson along with a cheapie usb digital scope.They're great. They're cheap, safe, and lots of cool things for kids to look at. These are child friendly safety slides that are specifically for grade-schoolers.Of course they are low quality and will be blurry. Don't hold plastic safety slides to the same light quality and refractive standards as glass slides.I just wanted to finally write a review for these because I keep recommending these to parents looking for microscopy kits, and this kit is one I regularly recommend. And I was disheartened reading some of the negative reviews. Right, we get it, much lower-grade refractive qualities in these plastic, safe, slides. So they're a bit blurry. And?It's a good product, does precisely as advertised, safe, and quality is just fine for child-safe prepared slides. We've gotten a lot of use out of 'em. I've recommended this kit to a bunch of people. Guess I'll do it in a review now.