This canopy set will allow yoiu to build your Dauntless with canopies that open. I if one blows off or gets dammaged replacement canopies are available individualy below. The sections are marked with an "F" for forward and "A" for aft for proper orientatiion. The canopies feature the radius found at the aft edge that provides the seal found on the dauntless. this feature also locks them in place in the closed position. The panel lines are raised .020 to make it easier to tape off and to strengthen the canopies. They are formed with .030 PETG plastic , the same material soda bottles are made with and you know how tough they are. PETG plastic is also non yellowing and compatable with most adheasives and paints.