Brand: Arai Helmets
This is the same small teardrop-shaped vent duct supplied on new Arai GP-7 (white) helmets. New GP-7 helmets have three of these vents: one in the center of the forehead, with the opening facing forrwards to act as an intlet; and two on either side of the back of the crown, with the opening facing rearward to act as an outlet. White molded plastic. Self-stick tape is preapplied for easy installation. Sold individually.
Although not originally supplied on the GP-6, this duct can be installed on the GP-6 shell. Note that unlike most other Arai vents, this duct does not have a closure mechanism. It is always open.