Stability is everything...getting into a bath.
After a knee replacement, I became more than unstable it's the least I can say.  When visiting... I bring these succion grab bars so that I don't fall.  Unfortunately, they are not of the same quality as the ones I bought at a orthopaedic clinic.  They are somewhat difficult to active the succion cups.  The cups are rather rigid.  Once you put those on don't change place.  And even if I "cleaned very well" the place where I wanted to put them,  one end would pop off.  As a second option,  it will do the job.
Rating: 4 stars