Not too much fun on your knees but you will appreciate the outcome. Fred
This is the best knee saver on the market. I have one in every bay of my coach, and one on the inside. As soon as I open a bay door, I drop one on the ground. When I go on the roof, I toss one up there before I climb the ladder. I got them for $7.99 each at Ace Hardware. I have never been able to find them on Ace Hardware's website, but they are at individual stores. I've found them in Florida, Wisconsin, and Illinois. I have even called the manufacturer direct and they have told me where I can purchase them. They are made by Earth Edge Products in Hickory, NC. They are 1-1/2 inches thick and are perfect for kneeling on tile floors, concrete, and gravel surfaces. Click on the pictures to enlarge.