Brown Color Bamboo Sunglasses Wooden Sunglass with Polarized Lens Bamboo frame Resin lens polarized Lens width: 53 millimeters Lens height: 43 millimeters Bridge: 12 millimeters Arm: 145 millimeters Reinforced Metal Hinges. The sunglasses is light and can float in water,Because of the porous nature of bamboo. They're made with actual bamboo, so every pair is different. Provide crystal clear vision and anti-glare effect with UV400. The shipping time is about 10-15 days on the way. You can track it on www.usps.com 2-3 work days later if you are resident in US. sometimes,the delivery time may be longer(15-20 business days)..pls wait for it patiently.