Buy on ebay, If you by ab circle pro you should buy 'Knee Bowl Booties" It will save your Knees. I bought them on ebay, wonderful product.

If you buy Knee Bowl Booties on ebay you wont have this problem, they are fantastic

If you by ab circle pro you should buy 'Knee Bowl Booties" It will save your Knees. I bought them on ebay, wonderful product.