Thera Cane was developed by a chronic pain patient looking to relieve his own discomfort resulting from neck surgery and a herniated disc in his back. Each patent-protected Thera Cane product is uniquely designed for ergonomic comfort and maximum relief. All can be used sitting, standing or lying down depending on where the pain is and which approach will obtain the best angle of penetration to relieve the trigger point. All Thera Cane products are made in the USA and are Latex-free.