Expansion joint with a 10 mm visible part, composed of two AISI 304 stainless steel outer profiles joined by an improved flexible synthetic rubber profile, which provides excellent resistance to tension, abrasion and bending fatigue. This new material has been used because it adheres perfectly to the two parts of the AISI 304 stainless steel and is highly resistant to external aggressions (temperature, weather, usual cleaning products, etc.).