• Medium Volume Mask
• Wide field of view
• Anti-fog
• Simple and smooth appearance
• Leak-proof design
• Comfortable to wear
• Silicone Integrated Molding 
• Perfect seal, smooth, low-key
• Push-button buckles
• Easily adjust strap length
• Single Tempered Glass Lens
• Wider and excellent field of view
• Undersea High Definition 180 degree wide view
• Impact resistant Tempered Glass Lenses are just like HD displays at home, taking you to explore the under water world
• Integral molding, perfect vision
• Silicone and Tempered Glass Integral Molding
• More safe no extra inferior plastic frame, wider vision view

How to adjust the strap:

• Pull the buckle while pulling the belt open with your other hand
• Squeeze the buckle's both sides by fingers
• Pull the strap while pressing the button 

Product Dimension:

18.5cm x 11.7cm