Gunnar Optiks RPG-00101 RPG Full Rim Advanced Video Gaming Glasses with Quad-Core Hinge Design and Amber Lens Tint, Onyx Frame Finish i-AMP technology, amber lens tint, anti-glare coatings and ultra-pure lens material help provide sharper, clearer vision for serious gamers Made of aluminum-magnesium with an onyx frame finish Quad-core hinge design and proper weight balance ensures frame flexibility, durability and long wearing comfort without pressure points or fatigue Wide fit frame ideal for larger heads Comes with a 1-year limited warranty against manufacturing defects