Digital Blue QX5 is the best microscope I have ever found. I have two differant models of the Andonstar, and the QX5 is by far better than either one! They started selling the QX5 in Toys'r"Us, and later, it was sold to a new company that markets it now. Originally it costs $49.95, but now on eBay they sell up to about $70.00 (more or less). There is also a newer QX7 available, but I haven't tried it.