This lightweight medium-sized pad is designed to comfortably wrap around the curves of your body. Consisting of entirely crushed amethyst gemstones, it boasts enhanced flexibility and comfort with each use. Amethyst is a great natural stone with a history of providing a calming effect. This model is ideal for targeting stomach or lower back pain with deep penetrating heat to relax muscles, relieve aches, and more. As a result of the deep penetrating heat, this mat is beneficial for internal pains and discomfort. This model also comes with the added feature of photon light therapy. In fact, this is one of the most affordable models we offer with this advanced therapy. Photon LEDs emit visible red light that promotes accelerated detoxification and cell growth. Rid your body of excess waste, harmful toxins, and heavy metals to improve the way you feel.