COSYWILL Economy Knee Scooter for Adults for Foot Surgery Heavy Duty Knee Walker for Broken Ankle Foot Injuries RecoveryIdeal knee scooters for foot injuries adult : surgery to the foot, ankle or lower leg as well as below the knee amputees. The BlessReach knee walker is an excellent alternative to crutches. Comfortable Using crutches requires extensive upper body strength, rubs under your armpits and is unstable. This knee walker is made for both indoor and outdoor use, it is a hands free pain free crutch alternative and offers the most versatility among knee walkers.