Mike. When you get a bit older, you will be entitled to one. It allows you to travel on local buses for free & depends on the Council issuing as to what " local" is. Here in the Manchester area, it covers all of Greater Manchester, so besides the centre, Bolton,Bury,Rochdale,Oldham, Thameside,Stockport,Trafford & Salford; so pretty extensive. They don't mess with " what you would have paid"!