One of our first is still one of our most popular. The Engineer® is constructed from a nickel-silver alloy and is available in two fashionable styles; aviator (54 mm or 58 mm lenses) and conventional (58 mm lenses). Spatula temples are constructed of a brass alloy for easy adjustment. The nose pad is also adjustable and constructed from soft, pliable PVC. The Lady Engineer® features the same construction as the Engineer®, but in a 55 mm round lens to conform to smaller faces. Replacement lenses are available. Complies with ANSI Z87.1-1989 Standards. Sold by the pair.