Sealed gel frame is fitting on your face, so do not need to worry about leakage. Tempered glass lens, shatter resistant and scratch resistant, can withstand deep water pressure. You will have a great experience with this nice diving goggles.<Br/>feature: <br/>tempered glasses: shatter resistant and scratch resistant lens can withstand deep water pressure.<Br/>crisp images: anti-fog lens offer a wide and clear viewing for free underwater exploration.<Br/>sealing: soft silicone edge seamless fit on face to prevent leakage.<Br/>adjustable: simply pull the strap to fit your head and the buckle will secure the goggle in place.<Br/>specification:<br/>material: pc frame &#43; tempered lens &#43; silicone edge <br/>frame size: 15.5 * 5.2Cm / 6.1 * 2.0In <br/>weight: 173g / 6.1Oz<br/>package weight: 173g / 6.1Oz<br/>package list: <br/>1 * diving mask