The bright color is perfect for surfing, snorkeling, swimming and boating, allowing you to quickly identify. Its braces are very soft, providing maximum comfort and super durability. It has breathable opening on both sides, you can breathe freely through active actions. It is super light and will not affect your performance when diving, skiing or surfing. Made of high quality silicone material, it is to use. The length of this product is 9cm, the width is 5cm and the height is 4cm. It is suitable for surfing, snorkeling, swimming and boating. Item Name: Diving Camera Accessories Colour:orange+black Material:Silica gel Package Contents: 2 x Mouth Mount 2 x Long Screw Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Made of high quality silicone material, it is to use. It is suitable for surfing, snorkeling, swimming and boating. The length of this product is 9cm, the width is 5cm and the height is 4cm. It has breathable opening on both sides, you can breathe freely through active actions. It is super light and will not affect your performance when diving, skiing or surfing. The bright color is perfect for surfing, snorkeling, swimming and boating, allowing you to quickly identify. Its braces are very soft, providing maximum comfort and super durability.