I bought this for my 6 year old granddaughter as part of an ongoing gentle encouragement of all things scientific. She had seen real life Praxinoscopes in both Disney Land and at the Science Museum.
The kit is fairly easy to put together, needs adult guidance here and there, as some of the parts would break if forced.
Once assembled it works well, she loved the galloping horse. Although there is a small battery powered light in the kit we found it wasn't needed, it works fine in just normal room lighting.
There was no explanation of either the history of the device, nor about why it works (persistence of vision etc.) which was disappointing as the kit can lead to discussion about how we see things, the famous Edward Muybridge bet that was the precursor to this device, leading to the history of cinematography etc.
All in all a good kit, but could be just that bit better with more background and perhaps some more slides.