The tennis post “T Base” is made from special aluminium profiles. Each post weights approx, 120kg. The cross section of the upright measures a cross section 80×80 mm and a thickness of 3 mm. The tensioning mechanism is located inside the post to ensure highest safety standards. The net can be tightened by a removable crank. The posts are covered with especially casted caps. The item is equipped with turnable and lockable wheels.