2PC Aluminum Alloy 1″ Ball Mount Adapter with 1/4″-20 Threaded 1 Inch, Black
Ball joints are coated in a rubber material.
Full Face Snorkel Mask, Snorkeling Gear for Adults Large-X-Large, Black Green
【 】Our adults full face snorkel mask has a dual float ball design that prevents water from entering the mask by using gravity and buoyancy. Compare with other snorkel masks, it is designed for inhaling only, and the amount of oxygen that can be breathed has doubled.