1、Full dry breathing tube, which usually higher than the wave's height that avoid water pours into the tube 2、Silicone mouth piece, use high quality material, soft, healthy and environmental protection, give you the most comfortable bite angle 3、Diving mask is made of tempered glass, safe to use, reduce the opportunity that lens crushed caused by the water pressure, reduce the harm to human body, safety and explosion-proof 4、Use high-end fine silicone gel seal, soft and comfortable, reduce pressure, faying surface and water tight 5、Use adjustable buckle, humanized design, convenient to quickly adjust the size of head circumference Description: Resistant tempered glass lens, provides better protection for the eyes. It provides better comfort, soft, silicone frame of the mask and snorkel mouthpiece. Strap with adjustable buckles for quick and easy adjustment. Ideal for swimming, diving, snorkeling or other underwater activities. Mask Features: 1. Diving mask is made of tempered glass, safe to use, reduce the opportunity that lens crushed caused by the water pressure, reduce the harm to human body, safety and explosion-proof. 2. Use high-end fine silicone gel seal, soft and comfortable, reduce pressure, faying surface and water tight. 3. Use adjustable buckle, humanized design, convenient to quickly adjust the size of head circumference. Breathing Tube Features: 1. Full dry breathing tube, which usually higher than the wave's height that avoid water pours into the tube. 2. Pipe buckle, convenient to connect with goggles, PVC material is durable and not easy to damage. 3. Adopt PVC tube, that air blocking will not occur even 360 degree fold. 4. Silicone mouth piece, use high quality material, soft, healthy and environmental protection, give you the most comfortable bite angle. Specifications: Glass Material: Tempered Glass Mouth Piece Material: Silicone Mask Material: PVC Head Band Material: PVC Color: Blue, Yellow, Black (optional) Package Weight: approx. 525g Diving Mask Size: approx. 17 x 8cm / 6.69" x 3.14" Breathing Tube Length: approx. 46cm / 18.11" Quantity: 2pcs/set (1pc diving mask, 1pc breathing tube) Suitable: For Adult Package Included: 1 x set of snorkeling