not sure yet For use for standard workouts, and for travelling, I would recommend it. Found the device name. No biggie- no raw skin and I did not even need a band-aid! You cannot just throw a wheel on it true it. Just got a new Trek Supercaliber recently and had a heck of a time finding a mount thatd work and not be out in front. (or better yet, use real wood. It did not fit in the receiver of my 2016 Toyota 4runner. We had an Amazon Fire Stick that wouldnt fit into our TV next to the other HDMI cable without pointing it at a slightly funky angle and worrying about it damaging the TV, cord, or Fire Stick. The size of the foot bed is with a good fit with also a very good arch support.