Gender: Unisex; Body : Bone; Glass : PC Lens Optical; Body Color : Leopard Brown; Gauge: 54; Nose Pitch: 18; Handle Length : 140; It's not an optical product. It's not a medical device.; Produced using environmentally friendly 100% organic dyes, the glasses are 100% recyclable and environmentally friendly, thanks to their raw material. The glass features UV-protection crystal. It's designed to help reduce the occurrence of digital eyestrain and prevent disruption of the circadian rhythm cycle that affects sleep and general health, and it blocks harmful blue light while changing the wavelength that affects the circadian rhythm. ; By Harmony Brand Glasses are under the guarantee of By Harmony Turkey Distributor for 2 years. It will be sent with its original box, wiping cloth, soft case and warranty certificates.