I had always enjoyed the view master as a child. This past May, I purchased one (and this item as it's complement) for my little niece's 5th birthday present. My sister (the mother) has since called me several times to tell me the effect this product has had on my niece, carrying it to the daycare with her, etc. She just doesn't want to part with it. Just this last Saturday (six months later, mind you), during my visit, my niece came up to me and hugged me sying out of the blue "thanks uncle for that view master." Her mother has since been going back to buy additional slides.