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I NAV underlies the problems of many different communication and information systems. Car-navigation and Guide-navigation together. The size is 120x40mm. Roll-up display with thickness of 0.5mm. The special are two metal-rings. The user can pull them over his fingers and can follow the pressure impulses in his hands, to find the right route (possible through an intelligent plastic: because of magnetic nano-particles in the plastic which trigger the deformation through an electro-magnet; this plastic is classified as an intelligent plastic because of the simplicity of the basic material structure).