Patent attributes
A tool for physical training and rehabilitation, including a plurality of rings linked in succession to make an open chain. At least some of said rings are elastic, and they include at least a core made of an elastic material and at least a covering of the core made of a material that is non-elastic with respect to the core, wherein the covering is substantially configured as an accordion such that when the core is not stressed under traction it has a large fitting on the core itself, and when the core is stressed under traction/extension the covering is extended in order to conform to the extension of the core. The core includes at least one elongated elastic element, having two opposite ends, and at least one connection member linked, or knotted, to the ends.
