Warm them in the oven or microwave, rest your feet, and relax. Hand-carved blocks of Himalayan salt emit negative ions that cleanse and purify. (The Europeans know all about salt therapy; some salt spas have been in operation since the mid-19th century.) Each foot-shaped block comes in a terrycloth sock; the set arrives in a cotton canvas carrying case with zipper top and handles. Each block is 4½' wide, 11' long, 1' thick.
Three historic railways comprise a World Heritage site recognizing their importance in trade and technological development. Still in use today, the Darjeeling Himalayan Railway, Nilgiri Mountain Railway, and Kalka Shimla Railway were all begun or completed in the 19th century.