You can purchase the non-skid shelving in large 12" strips for a small amount. This sounds like a lot but I did go to what we have (not sure if available in your area) but it's a Yoga mat made out of the same non-skid shelving material, just heavier. Might find it in dollar stores. But it's wider and bigger and a bit stronger. it's wide enough to fit the back and arms of the chair.