Firmoo Blue Light Filter Glasses Retro Nerd Glasses for Women Men Anti Eye Fatigue Computer Glasses Workplace Glasses Firmoo was created 9 years ago, and over these years she specialises in computer blue light glasses and reading glasses, and has gained many experience in between. Anyone who works for a long time on the computer, tablets, TV, iPads, phones needs Firmoo blue light blocking glasses. Information about the glasses: Dimensions of the glasses: Total width: 139 mm Lens width: 52 mm Lens height: 49 mm Bail Length: 148mm Bridge width: 18 mm Weight: 15g Material: TR90 glasses frame, blue light filter lenses Gender: unisex frame shape, great for men and women. Glasses shape: round nerd glasses Ideal for those who sit or play for hours at the computer, iPad, phones, and also those who watch TV in the evening, no matter you are an employee, students, or teenagers, it is worth getting blue light blocking glasses to protect your eyes, relieving head jokes and helping fall asleep better at night. Convince or 90 days money back guarantee and customer service. If you have any questions, just contact us, we will contact you within 24 hours