The Tension Tamer mushroom is a must-have tool for those suffering from facial tension, neck or jaw pain induced by teeth grinding or jaw clenching. It can help relieve tight muscles in the face. This stone helps invigorate and break-up blood stagnation, it induces the movement of blood and lymphatic fluid and can help release deeply held emotions. Contraindicated for use in pregnancy. Sold seperately as one per order. 2 can be used simultaneously on both sides of the face. Pouch included when you buy 2. Can be used hot or cold.