Based on this product's specifications, here are some alternatives and similar models
Rehabilitation Knee Walker TIMAGO Knee Walker — forearm support, swivel wheels, height-adjustable
Summary description:
TIMAGO Knee Walker is a rehabilitation knee scooter designed for out-of-foot mobility after injury or surgery. It features a padded knee support, forearm-style handlebar support, swivel front wheels for maneuverability and an adjustable-height frame to fit different users. Suitable for indoor and outdoor use, it helps maintain mobility while offloading weight from the foot or ankle.