Most of us take the acts of sitting, standing, and walking for granted, but for those suffering from back, muscle, and joint pain, even these seemingly simple actions can be extremely uncomfortable.... This description may be from another edition of this product.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.