if you can't go skiing, climbing or snowboarding without your corrective lenses in place (also perfect for motocross and mountain biking goggles) Made from a highly durable TR90 composite, the insert is designed to fit into any adult-size ski or motocross goggle by way of sprung arms that simply clamp themselves to the inside of the lens Corrective lenses up to a strength of plus or minus 4.5 SPH can easily be added to the insert by any reputable optometrist color: transparent size:12*6.3cm The number of shipments: 1 Note: Other items are not included here, other pictures only show the effect Due to the difference between different monitors, the picture may not reflect the actual color of the item. Because of manual measurement. Please allow deviation. Thanks