Jo Ann,
I was given this thing for a gift on Mother's Day.
You can turn it up and sit on it.......or
You can turn it down and kneel on the soft rubber padding. The side bars give you something to lean on while you try to get up.
https://www.amazon.com/dp/B00004Z4MS/
It's called the Rumford Gardener's Seat
What do you think of it. It takes me a while to get up, but I can do it.