I first saw this product at a friend's house, it had been bought for their son, but pretty quickly everyone (children and adults) wanted to find out what they were the height of. It caused such entertainment that I then bought one as a birthday present for a 6'2" friend of mine and it now hangs in her office, where she informs me she works with a man who is "the height of an adult gorilla!" - After the success of that my mum bought another one for my neice and nephew. This height chart is such a simple product, but never fails to entertain, beats any others charts hands down... I bet you are already wondering what you are the height of!