Description: Reading Glasses: High definition fashion, blocking wavelength 415-445nm, selectively filter blue light, and pass beneficial light. Material: The frame is made of high quality TR material, which is flexible, waterproof and sweatproof, strong and resistant to falling. Comfortable to Wear: The single glasses holder is lightweight, about 11g. Anti Slip Temples: The inner anti slip silicone material fits snugly and does not slip, suitable for sports wear. Application: Casual full frame design, suitable for reading, reading newspapers, watching TV, shopping, shopping, traveling, etc.Also a perfect gift for the elderly and relatives and friends. Specification: 100 Degrees: Suitable for under 50 years old 150 Degrees: Suitable for 50-54 years old 200 Degrees: Suitable for 55-59 years old 250 Degrees: Suitable for 60-64 years old 300 Degrees: Suitable for 65-69 years old 350 Degrees: Suitable for 70-74 years old 400 Degrees: Suitable for over 75 years old Material: TR Material Product Size: 139mmx41mm Package Includes: 1Pc Glasses 1Pc Glasses Case(5 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.