Bullet Points:1、Black, transparent, mirror width 15.5cm, mirror height 13cm2、Tempered glass diving mask. With 4mm tempered glass, high-strength compression and crushing resistance, no refraction in water, maximum protection of the eyes.3、The vision is wide, clear, and eye-catching. The inner hemispherical mask of the mask has 180 degree vision, wide field of view and increased comfort. The headband is better fixed to the head, reducing the pressure.4、Soft silicone gasket, the mask is lined with imported food grade liquid silicone, strong stretching force, fits the face, leak proof, comfortable and soft.5、Quality tube material: PVC tube body, environmentally friendly materials, resistant to aging. Mouthpiece liquid food grade silica gel, colorless, non-aging, no cracking. Comfortable.Parameters:Product name: Advanced diving mirrorColor: black, transparentProduct material: Mirror surface: high-grade tempered glass, plastic mouth: food grade siliconeSize (approx.): mirror width 15.5cm/6.10in, mirror height 13cm/5.12inDescription:Material Description: PVC tube body, environmentally friendly materials, resistant to aging. Mouthpiece liquid food grade silica gel, colorless, non-aging, no cracking. Comfortable.Tube head: PC. Water stop valve sheet, silicone, better sealing.Water guide valve piece: silica gel.Working principle: When the diving is deep, the pipe head enters the water, and the buoyancy plug (the middle is empty) receives the buoyancy of the water, and drives the water stop valve to seal the water inlet.This way the water can't enter the tube. When the tube head is out of the water, the buoyancy plug sinks and the water stop valve leaves the water inlet, so you can breathe freely.Note: The difference between the snorkel, and the dry type include dry and semi-dry type. Please don't think that the dry type is all dry, and many buyers will make mistakes!Snorkel tube is divided into dry tube (full dry and semi dry) and wet tube: full dry tube ensures that there will be no water in the tube when dive, but wet tubes and semi-dry can't be guaranteed. When diving and then floated to the surface, the wet tube needs to pour out the water. For the semi-dry, it is necessary to blow the water in the pipe from the intake pipe head and the drain valve before inhaling.How to use: Use your teeth to bite these two raised areas. The mouth will be completely wrapped around the mouth. After entering the water, inhale with your mouth and exhale.List:
Advanced diving mask*1
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