The strap I have has hand hold loops every 8 inches or so and it's like 8ft long. Basically it gives me handles that I can use to push the stretch. I have small hands and my grip is becoming an issue so the handles the handle loops just make things easier. My bone spurs are on the front of my heel rather than the back but I know that pain. My sports med guy gave me a torture device to sleep in which was supposed to solve the problem but just gave me bouts of spasticity. The strap was a much better solution!!

This is the kind I was talking about. Stretching Strap