This handle places the center of your palm directly in line with the shaft of the cane, so there is no torsion on the wrist. Most folding canes have a handle like an uneven T, so the shaft lines up off-center from your wrist. The resulting torsion strains your wrist.
This cane is very comfortable to use. The folding version is no longer available in drug stores and medical supply stores. It took a long time but I finally found enough information to locate it on Amazon. I bought two; one for use and one for backup.
The older canes like this that I did buy in drug stores lasted many years without problems.