This company makes canes with 3-prong adjustable tension feet. I found them while researching canes online. I need a knee replacement and will not be able to have the surgery until this winter. This cane is just what I need to take the pressure off my bad knee and be able to walk a few blocks when needed. I’m sure it’ll be helpful after my surgery as well. The tension feature is great and I can’t imagine using a cane without this feature. Another great feature of the cane is that when not using it you just leave it standing in place. It is sturdy and lightweight.