Friends who had small children recommended this item to my daughter. This was what she wanted to develop a baby's vision but she commented that they were hard to find. One of her friends had resorted to making her own because she could not obtain such. It was Mighty Ape that I was able to find exactly what she was looking for. I could relate to my daughter's opinion as our son would only take an interest in one picture of a Dick Bruna book that we placed in his pram. It was a black white outline of a Queen with a yellow crown. All others were colourful and he showed no interest in them. Thirty years ago there was not the research into the vision of babies. This product was sent the next day after I sent my order. My daughter's comment was “exactly what I have been looking for”