Stuff I got was a 3 metre roll,red,one inch wide,was about a fiver delivered,they did white,Orange,green,yellow,wider sizes and longer rolls,quite flexible,we used it on a caravan body repair,seems ok,disguised a cracked panel nicely!
Have a look at 'Bluelite Graphics - Vehicle Livery',.. they are the ones who supply the police with the stuff for their vehicles. They do a 3M Diamond Grade' stuff that can be cut to shape, that is very reflective at night, and florescant in the day. I think they have several other types also,.. I bought a box of it in all sorts of colours for my Pan Euro's, so I'm not sure if there is a minimum order, but they were very helpfull over the phone.