This device has been imported from the US.  It is used for measuring the length and width of Men, Women's and Children's feet. It is a great device for all mum's to have at home or in thier handbag when shopping for the family.  You will never have to take the kids shoe shopping again or your husband for that matter - something that he will be wrapped about!  Measure their feet at home then if your out and find something that you think they will like, you know your going to get the correct size. Very easy to use and folds away to measure just 18cm (l) x 4.5 (w). Every home should have one.