Size: Lens width: 51mm, Lens height: 50mm, Bridge: 19mm, Temple: 148mm, Front width: 142mm, Weight: 10.3g (excluding lenses) Blue Light Protection: Equipped with blue light cut lenses, which cut harmful blue light emitted from digital devices, reducing eye strain. Photochromic Function: The lenses change color in response to UV light, becoming darker like sunglasses outdoors and clear indoors. This allows for easy adaptation to weather conditions like cloudy or sunny days. Comfortable Fit: The frame uses ultra-lightweight TR material, which does not cause pressure even when worn for long periods, and reduces pain behind the ears. The integrated nose pads reduce pressure on the bridge of the nose. Classic Design: The popular Wellington design suits any face shape, can be worn by both men and women, and gives a vintage impression.