DescriptionThis dive mask is designed with safety in mind. With 189 degree large viewing area, snorkelers can see all the underwater world without feeling claustrophobic . Adjustable design, easy and comfortable to wear, one size fit for most head size, fit for both men and women.Features-Color: black -Material: silicone, tempered glass -Size: 15.50X13.00X2.00cm/ 6.09X5.11X0.79in - Made of quality material, safe and durable to use, not easy to break, long serving life. - Anti-fog, anti-leak, waterproof, a perfect diving and snorkeling mask for beginner and professional. - An ideal gift choice for any diving lover, show them your love and concern. - Dual airflow breathing design, allow you to breath freely, you can swim for a longer time. - Compact size, portable and lightweight, easy to carry around, bring more convenience.