When the SPINE KOREA Mini Jade Stone Heating Matt SK264 jade is heated, it emits far-infrared heat that penetrates deep into your body and relieves pain, improves blood circulation, reduces tension and stress and in time – improves muscle flexibility. Jade is known as a healing stone and has been known to boost depleted spirits. It provides a steady stream of positive energy that help you slowly recover from past problems. Jade can also be used to increase longevity and luck (of course, it’s not scientifically proven to do that…) To get the right temperature, you can crank it all the way up to the highest heat level possible. Within a few minutes the pad is really warm and you can adjust downward with no problems. With proper application, hot jade stones have been proven to relieve: Back pain Sciatica Deep muscle tissue pain Hypertension Arthritis pain …and basically any body pain you’d take painkillers or get massage therapy for!