Carbon Fiber Construction All APR Formula GT3 Mirror housings are reinforced with layers of carbon fiber sheets for weight reduction and added strength. Wide Range of Adjustment Every Formula GT3 Mirror include a left to right pivot arm at the mirror housing with an adjustable ball stub rod to allow a wide range of adjustment. Aerodynamic Shape to Reduce Drag These carbon fiber mirrors are compact and aerodynamically shaped for a low drag coefficient. 5.5" Wide Angle Convex Mirror Lens Convex lenses are used on both driver and passenger sides mirrors to eliminate blind spots. Blue anti-glare mirror lenses are included to reduce reflections from headlight glare during nighttime driving. Please note: Blue anti-glare mirror lenses found only on 5.5" wide APR Formula GT3 Mirror housings.