Round Flat Massage Stones (Set of 6), 1.5" H* X 3" W, Extracted From Himalayan Mountains. 100% Natural Crystal Salt. Hand Picked. Carefully Shaped to Provide Optimal Results. Free From All Impurities and Imperfections. Heated Salt Stones Are Remarkable for Stiffness in the Joints. Cold Stones Reduce Swelling and Inflammation.