Historical Emporium Men's Chrononaut Steampunk Sunglasses Imported metal frame Tinkerers, gadget makers and other mechanical minions will flip out for our Chrononaut Sunglasses Metallic hinged side shields are approximately 1 inch deep Large 2 inch diameter tinted lenses offer UV 400 protection Hinged side shields fold inward to make storage easy Metallic frames measure 5.25 inches across, from end piece to end piece