Drive Medical DV8 Steerable Knee Walker (790) Baja Motorsports Canyon 90-U (CN90-U) this is the gadget that

this is the gadget that holds the steering column handlebar to the knee walker's fork

This 3-spoke black wheel assembly comes complete with pre-installed bearings and spacer

but their maneuverability often comes at the cost of stability

Also includes 6202ZZ (6202Z) Shielded Mobility Scooter & Power Chair Bearings (Set of 2)

Bladez eLite 350S

Drive Medical DV8 Steerable Knee Walker (790) Baja Motorsports Canyon 90-U (CN90-U) this is the gadget thatThe DV8 steerable knee walker from Drive Medical is for those people who need a comfortable yet nimble alternative to traditional crutches. Sometimes called a leg walker, this specialized mobility aid was designed for those who cannot bear weight on a lower leg but need maneuverable mobility. A knee and leg walker like the Drive Medical DVG is stable enough for safety, and easy to use. This steerable knee and leg walker provides excellent leg support