This handy swallow bian stone awl measuring about 9.4cm X 8cm is truly a unique tool. It can be heated in several convenient ways, such as by hot water, hot air, or even just by being exposed to sunlight. Once heated, it becomes even more effective as it can be applied with more force to the major acupressure points on the body or feet. This not only provides a therapeutic experience but also helps in relieving stress and promoting relaxation. Whether you are looking for a natural way to soothe aches and pains or simply want to enhance your well-being, this swallow bian stone awl is a great choice.