MSA Spectacle Blue Mirror Close F Unit EA. The frames maintain the integrity of the optical quality and function of the device. The Spectacle retainers are in place to support the proper fit of a pair of spectacles or goggles inside an Glasses system. The blue mirror reduces re-flection of light from all angles inside an Glasses system allowing the user to see a clear image all around them. The Spectacle retainers must be assembled to a complete Glasses system. Each Spectacle frame comes with a black elastic head band and an adjustable nylon cord. The head band is easily removed for cleaning or replacement. A retainer is provided for keeping a spare set of spectacles or goggles in place. A small seal is all that is needed. No tools required A headband and ear socks are also included. A large variety of frame and goggle combinations are offered from MSA and other brands. Specifications for MSA Spectacle Blue Mirror Close F 454-10008179: Manufacturer: MSA Weight: 0.02 lb Available quantity options: Each Package Contents: MSA Spectacle Blue Mirror Close F 454-10008179 / 300008-954 The MSA Spectacle Blue Mirror Close F 454-10008179 is a quality addition to the MSA lineup. For more great deals on Safety Glasses by MSA please browse our MSA Safety Glasses page. MSA Spectacle Blue Mirror Close F 454-10008179 Unit EA