Senchoice Lightweight Clip On Sunglasses Night Vison Driving Eyewear Yellow Lens metal frame plastic lens polarized Lens width: 59 millimeters Lens height: 35 millimeters Reduce oncoming car light at night 100% UV400 protection and polarized and Al-Mg frame material-lightweight,design to reduce your sunglasses weight! Strong and durable lens These clip-on sunglasses can not flip-up The clips are small that they might only go on wire frame glasses, not fit for some plastic frame glasses.