Processed by special technology, they are great in function fog- proof. Silicone frames are soft and pliable to wear. nose retainer to fit most nose comfortably, so you can concentrate and enjoy leak free swimming experience. The ultra- soft silicone gasket and improved nose piece provide comfort that never hurt your nose or leave a mark on your face, no more tangled hair. A good gift choice to your friends who like swimming, they will like it very much. Made of superb optical material, the lenses feature great resistance to impact under high water pressure. - Color: Black. - Material: PVP. - Size: 15. 5x15. 5x3. 2cm./ 6. 1x6. 1x1. 26Inches - Made of superb optical material, the lenses feature great resistance to impact under high water pressure. - Processed by special technology, they are great in function fog- proof. Silicone frames are soft and pliable to wear. -nose retainer to fit most nose comfortably, so you can concentrate and enjoy leak free swimming experience. - The ultra- soft silicone gasket and improved nose piece provide comfort that never hurt your nose or leave a mark on your face, no more tangled