QD Sling Swivel 2pcs end of year sale Powered by a single AA Kleur:Everglade Powered by a single AA battery amazing universal fitzero pressure pointseasy lens release (DedBolt Lens Lock)distortion free optical precisionClearZone FlowCoat Technology (eliminates fog)lens coatings are engineered to maximize scratch resistance on the outside and fog resistance on the inside2 Weight: 50 g Shipping weight: 60 g