HANDMADE SOAPSTONE FROM THE USA! These CoreStones® are made from Soapstone and are an excellent thermal conductor. Perfect for hot or cold deep muscle therapy, these patent pending stones are designed for use in reflexology, trigger point therapy and myofascial release. The broad, flat surface is ideal for myofascial release, and turned on their end, they can be used as a trigger point tool. Because the surface of the stone is larger than our thumb, clients can tolerate more pressure, facilitating a deep release of muscle tissue without pain or tissue trauma. They also help to reduce the strain on therapists hands, wrists, and thumbs. Soapstone is non-absorbent for easy hygienic maintenance.