Item Type: Folding Reading Glasses Diopter: +100, +150, +200, +250, +300, +350, +400 FrameMaterial:Metal Style:Full Frame Net Weight: 23g Frame Color: Gold Legs Color: Black Size: One Size(Foldable) Nose Bridge: 23mm Lens Width: 50mm Lens Height: 32mm Legs Length: 145mm Frame Width:137mm The Reference of Age and Diopter: Age( years old) Under 50 50-54 55-59 60-64 65-69 70-74 Over 75 Diopter +1.0 +1.5 +2.0 +2.5 +3.0 +3.5 +4.0 Package Included: 1 X Folding Reading Glasses 1 X Black Bag