Perfect for those who can't use crutches - or don't want to. No tipping or falling on crutches. Most user-friendly knee walker due to the wheels swiveling in place as you glide along. No lifting to turn or go backwards & forwards to navigate in tight spacing. Goes straight at the push of a button without turning, too. Rollaraid has the best combination of features & performance of any turning orthopedic leg support scooter available