Heads Up! requires little if any adjusting and is made of a strong but very lightweight, bendy, safe-to-wear Poly Carbonate composite material. As you put Heads Up! on a pair of sunglasses you will see how easy it is to install. If you need to adjust it slightly, simply bend it.
- No Vibration;- Mounts To Any Glasses;- Will Not Damage Glasses- Removable/ Adjustable;- No Hassle Installation- Weighs only 3.1 grams