"Specifications:Model Number: ER6001Frame Material: Metal FrameSpring Hinge: YesFrame Width: 5 1/2 inches (139mm) Bridge: 9/16 inches (14 mm) Temple Length: 5 7/16 inches (138mm)Len Width: 2 1/16 inches (52mm) Len Height: 1 13/16 inches (45mm) Strength available: +1.00 / +1.25 / +1.5 / +1.75 / +2.0 / +2.25 / +2.5 / +2.75 / +3.0 /+3.5Color : Black / Brown / Gunmetal /Navy Blue / Silver Features:Unisex classic metal aviator style readers100% brand new and high quality Stylish ,light and comfortableErgonomic and super sturdy design ensures premium performance and comfortWhether you are looking for reading glasses for the office or home. Eyezoom reading glasses will give you the premium protection. 30 days money back guarantee. Customers can return and get refunded for any reason.. Care:To avoid damage, never clean your reading glasses with paper towels or clothing or alcohol, and also avoid using household detergents or soaps. While a few mild soaps don't harm lenses, today's extra strength soaps are powerful enough to slowly disintegrate lens coatings. Attention:Ready to wear non-prescription glasses are not intended to replace prescribed corrective lenses or examinations by an eye care professional. Continuous eye check-ups are necessary to determine your eye health status and vision needs. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Size for manual measurement, there may be a 0 to 1 cm error, belongs to the normal phenomenon. "