Product DescriptionProtect your optic with the original Butler Creek Flip-Open Eyepiece Scope Cover. Custom-fit for 1.67 inch (42.5 mm) outside diameter eyepieces, this lightweight polymer cover seals out dust and moisture with an airtight O-ring and opens instantly with a one-touch, ergonomic button. A silent spring hinge delivers smooth, ambidextrous operation, and the durable design has been tested to perform in extreme cold down to -40AdegF.Product HighlightsFlip-open, one-touch operation with ergonomic, non-slip buttonAirtight, watertight O-ring seal to protect lenses from dust and moistureSilent spring hinge and ambidextrous use for stealthy, fast accessCustom fit for eyepieces with 1.67 in (42.5 mm) outside diameterDurable black polymer construction; weighs less than an ounceSpecsProduct Type: Eyepiece scope coverSize: 17Fit: 1.67 in (42.5 mm) outside diameter eyepieceMaterial: PolymerColor: BlackSeal: Airtight/watertight O-ringOperation: Flip-open with silent spring hinge; ambidextrousTemperature Tested: -40AdegFWeight: Less than 1 ozUPC: 051525201700Manufacturer Part Number: 20170Brand Name: Butler CreekDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.