Warranty: you have no risk to try and we will provide you the best service! We stick to pay attention to product quality, if there's any quality problems please feel free to contact us. Classic oval frame design, ultra-lightweight, universal size fits most face shapes. Blue light blocking glasses, reduce eyestrain and sleep better. Ultra-transparent lens with high light transmittance to prevent color distortion, 7-layer anti-reflective coating to minimize glare from digital screens. Portable folding readers, 3 pairs of women sturdy frame reading glasses, it folds perfectly into their small case and can be handy wherever you are.