Read more Magnet design .Our blue light blocking sunglasses suit for Multi-Scene adaptation , inndoors and outdoor both can use ,When you are working indoor just unload the magnetic patch ,Whenever you go outside traveling or driver ,you only take one second and clip on the magnetic patch .Enjoy and comfortable life whatever indoor or outdoor High transmittance lenses are used to reject blurred vision and relieve eye muscle tension. Ultra-thin lens to reduce the curvature of the spherical surface of the lens to ensure vesion is clear and real Our eye glasses can protect eyes ,block harmful blue light, reduce the damage to glasses caused by long-term viewing of mobile phones, tablets, TVs, and computers, reduce the stimulation of blue light to the brain before going to bed, and help you sleep better. Nowadays, electronic products are closely related to our lives, and it is almost impossible to avoid blue light exposure. The blue light blocking glasses is very important for us .They can effectively prevent blue light from harming our eyes, prevent headaches . When outside driving,you can clip on the sunglasses magnetic patch,The magnetic patch with polarizing function and it can let you driving safer The magnetic patch can effectively blue light blocking UV400 that is harmful to the eyes. Read more Read more AISFEV SUNGLASSES SPECIFICATIONS Sunglasses dimensions 5.87*5.7 inches Sunglasses net weight 28g Frame color Brown ,Blue ,Black Lens material Acrylic/AC Sunglasses Patch material Triacetyl Cellulose/TAC