The TAO Hand is unique among our product line. Its design utilizes Velcro to wrap around your arms and provide 360-degree heat therapy. The TAO Hand incorporates crushed tourmaline, amethyst, and obsidian to channel far infrared rays and negative ions. This model provides minor muscle and joint pain in their wrists and hands as a result of living with arthritis. Experience a soothing heat that can temporarily relieve stiffness, minor pain, and more when you use the TAO Hand.