Do these glasses filter blue light?

Dear Customer, thank you for your inquiry! You will have the option to add the blue-light blocking lens during the ordering process. Check here for step-by-step guidance: https://www.firmoo.com/help-p-42.shtml. Our Blue-light blocking lens has a very light brown/yellow basis with a blue-purple reflective coating and 100% UV protection. It can effectively block 400 nm-425 nm harmful blue-light from the computer, phone, tablet, and greatly relieve visual fatigue. You may also refer to this link → How blue light blocking lenses work. For any further questions or immediate assistance, you may also call our toll-free hotline at 1-855-487-6006 opens every day from 6 a.m.- 6 p.m. PDT. You can also contact us through our Live Chat Support Team: Start a live chat (24/7) or email us at service@firmoo.com. Please stay safe and healthy! 

Is the metal nickel-free?

Dear Customer, Thanks for your inquiry. As for the frame#SJ5365M, this is made of Metal which usually contains nickel but it is the most widely used material to make eyeglass frames. Many people opt for metal frames because they are attractive and for their malleability and resistance to corrosion. If you have nickel allergy, we recommend choosing TR which is referred to as plastic titanium. TR frames are lightweight and resistant to impacts and high temperature. It comes in a range of colors and won't release any chemical residues. Please refer to this link for the frame materials that we have. You can also click the image to have a larger view. Please feel free to Contact us if you need further assistance on this matter. Thank you so much. Stay safe and healthy!

Do these glasses filter blue light?

Dear Customer, thank you for your inquiry! You will have the option to add the blue-light blocking lens during the ordering process. Check here for step-by-step guidance: https://www.firmoo.com/help-p-42.shtml. Our Blue-light blocking lens has a very light brown/yellow basis with a blue-purple reflective coating and 100% UV protection. It can effectively block 400 nm-425 nm harmful blue-light from the computer, phone, tablet, and greatly relieve visual fatigue. You may also refer to this link → How blue light blocking lenses work. For any further questions or immediate assistance, you may also call our toll-free hotline at 1-855-487-6006 opens every day from 6 a.m.- 6 p.m. PDT. You can also contact us through our Live Chat Support Team: Start a live chat (24/7) or email us at service@firmoo.com. Please stay safe and healthy! 

Is the metal nickel-free?

Dear Customer, Thanks for your inquiry. As for the frame#SJ5365M, this is made of Metal which usually contains nickel but it is the most widely used material to make eyeglass frames. Many people opt for metal frames because they are attractive and for their malleability and resistance to corrosion. If you have nickel allergy, we recommend choosing TR which is referred to as plastic titanium. TR frames are lightweight and resistant to impacts and high temperature. It comes in a range of colors and won't release any chemical residues. Please refer to this link for the frame materials that we have. You can also click the image to have a larger view. Please feel free to Contact us if you need further assistance on this matter. Thank you so much. Stay safe and healthy!