High quality: 100% brand new and high quality. Material: made with premium PC and AC material, high-quality and light. Portable glasses - the glasses of these make-up glasses can be folded to the left or right eye. About the strengths: 1.00 for 40-45 years old; 1.50 for 45-50 years old; 2.00 for 50-55 years old; 2.50 for 55-60 years old; 3.00 for 60-65 years old; 3.50 for 65-70 years old; 4.00 for over 70 years old. Please note: the colour and brightness may vary slightly due to different computer monitors or other factors. Please contact us as soon as you have any questions. We are at your disposal at any time