“Hot Rocks” massage therapy is a growing favorite massage technique in the finest health spas around the world. It’s easy to heat your heart-shaped massage stone (see instruction booklet included with the stone. The semi-precious gemstone holds the heat, which penetrates your partner’s body. Women love it placed on the ovaries. Try it on your partner’s belly, heart area, or sacrum, or any area you wish to encourage deep relaxation, stimulation of blood flow and deep tension release. You can also use your Hot Rock in hand as a tool to massage more deeply into muscle tissue. These 4″ heart-shaped Hot Rocks come with a beautiful sheer purple carrying pouch and instructions.