I've tried searching for my answer but nothing about knee scooters. The inevitable has happened. I am bringing my DD15 and her 3 volleyball friends in 3 days. One of them sprained her ankle a couple days ago and is on crutches. Knowing crutches do not work well for that amount of walking, was looking at getting a knee scooter. We are staying offsite. I am looking for places that would rent them and deliver to me as we don't arrive until 7:30 pm. Do they fold for trams, etc.?