✓?BUY WITH CONFIDENCE?Include 5 packs blue light glasses, 1 cleaning cloth, 1 blue light filter test tool.60-DAY MONEY BACK GUARANTEE and LIFETIME WARRANTY, 100% risk free to try any broken problem happens, 24 hours and 7 days customer service on line to solve your problems!. ✓?PRODUCT DETAILS?Blue light blocking glasses lenses: Anti blue light coating, UVA and UVB Blocking coating, scratch resistant coating. TR90 material frame can be 360° distorted without deformation, lightweight, flexible, durable. Comfortable nose pads combined with ergonomic design, no nose pressure; Sturdy spring hinge, easy to open and close, durable. ULTRA LIGHT & COMFORTABLE?Only 19g, ultra-light , sturdy, comfortable to wear without leaving indentation, easy to release the pressure on the bridge of the nose,does not pinch your face, suitable for any face shape. Adjustable Spring Hinge Design?Stylish eyewear with spring hinges, easy opening and closing, the temples can open up to 45° outwards, suitable for any face shape. Definitely not tight but steady on your face, no too much pressure for your temple. BLUE LIGHT GLASSES?Professional anti-blue light coating technology, HD vision, anti-glare, effectively blocks harmful blue light from led devices and digital screens ( computers, mobile phones, tablets, led light, TVs), protect your eyes from dryness and fatigue, help you sleep better. Arm: 146 millimeters. Bridge: 16 millimeters. Lens height: 43 millimeters. Lens width: 60 millimeters. Blue Light Blocking/UV Protection coating. Blue Light Blocking. Acrylic lens. Plastic TR90 frame. .