The Yoga Mad acupressure bed of nails will release the tension in your body to provide a feeling of complete relaxation. Its construction consists of a 100% canvas with 20mm foam padding, & 230 button-shaped discs with over 6000 acupressure spikes. The effect you get while using the acupressure bed of nails is similar to acupuncture. The product has a double carry handle & magnetic popper closure for convenient storage.