Moulded synthetic rubber (EPDM) base plate. Ensures uniform contact between the base of the lamppost and the foundation block, offering perfect stress homogenisation. Corrects up to 3° deviation, absorbs foundation block irregularities, and compensates for flatness defects due to welds. Avoids all direct contact between the metal and concrete (a significant source of corrosion). Ensures the drainage of condensation water from inside the lamppost and facilitates drying.