Charter Black Gold Medium MastThe BLACKGOLD Medium mast is 12% more flexible compared to the regular BLACKGOLD Power mast. The BLACKGOLD Optimist rig is the worlds most advanced Optimist rig. For many years it has been chosen as the official charter rig for the I. O. D. A World, European, Asian and Oceanian Championships. Several outstanding results have been achieved in the past years. FEATURES Heavy duty black hard anodized 7075 T6 Optimist mast Aerospace spec. alloy super stiff