Black Sadhu Board Futuristic Style with Copper NailsYes, this is a unique sadhu board made of solid teak wood in a futuristic style. WHAT DO YOU GET FROM THE SADHU BOARD AND HOW DO THEY WORK? Thanks to the stimulation of nerve endings on the foot, healing processes take place throughout the body: Promotes weight loss. Exchange processes will be accelerated. Normalizes blood circulation in the legs. Edema and swelling of the legs appear. Regular practice improves sleep. Improves overall well being.