1、This snorkeling set for adults comes with one-piece face mask and fully adjustable head straps that will fit virtually any face shape. 2、The ribbed design provides extra support and a water-tight seal, perfect for swimming, diving, snorkeling or other underwater activities. 3、Tempered glass is strong and enduring, meanwhile anti-shock and shatterproof, keep your swimming safe when submerged. 4、The tube can be bent 180°, you can breathe freely in the water. Sand dose not enter into the breath tube and your mouth. 5、With 180° view large viewing area, you'll find the underwater world is so beautiful and amazing. Features: This snorkeling set for adults comes with one-piece face mask and fully adjustable head straps that will fit virtually any face shape. The ribbed design provides extra support and a water-tight seal, perfect for swimming, diving, snorkeling or other underwater activities. Tempered glass is strong and enduring, meanwhile anti-shock and shatterproof, keep your swimming safe when submerged. The tube can be bent 180°, you can breathe freely in the water. Sand dose not enter into the breath tube and your mouth. With 180° view large viewing area, you'll find the underwater world is so beautiful and amazing. Specification: Condition: Brand New Material: tempered glass + silicone + PVC Color: Black Size: diving mask front: 15.8*8.5cm / 6.2*3.3in; diving mask back: 12.5*11.6cm / 4.9*4.6in tube length: 42.5cm / 16.7in Weight: Approx. 415g Applicable people: adults Application: swimming, snorkeling Package List: 1 * Diving Mask 1 * Breath Tube