These are G3 & G4 visor locking plates will add a bit of color and personality to your otherwise boring helmet. Not only are they safe to fly in the wind tunnel (won't scratch the glass), but they've also been tested to withstand the demands of skydiving and wind tunnel speeds in all orientations (when used w. properly tensioned/maintained visor locking bands, of course).

G3 & G4 Visor Locking Plates