Features: Elevates your biking computer durability with our waterproof and shockproof silicone case, designing to prevent against the adverse weather. This protective case offer a snugs fit and superior protective for your biking computer device, while the included film guards against scratches and fingerprints. For sports enthusiasts and outdoor adventurers who rely on their biking computer for tracking activity and want to ensures its longevitys in all conditions. Perfect for activity like hiking, biking, and exploring, this case enhances grip with its soft touching finish, reducing the risk of accidental drop while keeping your devices fully functional. The lightweight and easy to clean design ensures that your devices remain dustfree and functional, making it essential accessory for any intelligent electronic user. Specifications: Component:Silicone Size:Approx.6.56x2.87x13.72x3.06cm/2.58x1.13x5.4x1.2inch Color:Black/Orange/Blue/Jungle Green/Fluorescent Green For GPSMAP 66s 66st 66sr 669S 679 67 Package Includes: 1pcs Silicone Sleeve note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.