The kit is a great idea. I want it to work, but the zipper is so stiff, I cannot operate it! It's true--I have arthritis. I used soap on the zipper to soften it's teeth, but that did not help either. There is simply too much extra material around the zipper and it makes it impossible.
Get it, if you have strong wrists and lots of strength. For me, this was a waste of my money. And that is sad.