for some reason you cant really notice it far away, maybe its just because i was used to the high visibility of the red stripe.
It just comes on a roll, think you can get it in 9mm and 12mm.
You just put it on by hand, just takes time to get used to doin it, so 1st wheel can be practice, there should be enough on the roll to do a bad wheel again.
There is a fitting tool that comes with 3M high vis wheel tape, its ment for motorbikes, but its a few quid more, and the red that comes with it is reflective.