An acupressure mat.Similar to acupuncture; the Bed of Nails Mat is the perfect tool to help the body release endorphins; to help release pain and possibly provide a sense of calm; relaxation and energy. Made with 100% organic cotton fabric and 8;820 precision acupressure nails made from nontoxic recyclable HIPS plastic; this mat provides a firm; contouring support that helps to reduce stress on your neck; head; spine or anywhere else on the body. Use for just 20 minutes a day to help restore freedom to your body. 74cm x 41cm x 2cm