Mini Scuba Diving Tank with Sub-Mask, 0.5L Dive Portable Lungs Kit，Underwater Breathing System for Family, Party and Trip Perfect Professional Diving Packages

great cuality .

Funciona muy bien, pero es trabajoso cargarlo con la bomba devmano

el producto me parece bueno lo malo es la bomba para llenar el tanque de oxígeno

When I first received the unit, even hundreds of full strokes on the pump wouldn't show any increase in pressure. When I checked the fittings on the tank and pump, I found all of them loose. Also, you need to "oil" the pump shaft (look carefully at the pump instructions). After tightening all the fittings and oiling the pump shaft, it took the expected 500 pumps to bring the tank up to full pressure. I have a large lung capacity, so the tank only lasted about 5 minutes and the last 100 strokes of the pump were far more difficult than the first 400...so I bought an electric pump that makes life easier. The mask seals well and the double-snorkle feature is nice when not using the tank.

As a technical diver, I’m constantly doing preventative maintenance on my gear. Small components are often the first things to wear out, and mouthpieces are definitely one of those items that eventually need replacing. Because of that, I like keeping a few quality replacements on hand, and this one has turned out to be a solid option. The first thing I noticed is the comfort. Jaw fatigue can become a real issue during longer dives, especially when you’re holding a regulator for extended periods. This mouthpiece has a softer, more flexible silicone that sits naturally in the mouth and doesn’t require as much clenching to keep it in place. That alone makes a noticeable difference during longer dives. The silicone itself feels high quality. It’s soft enough to be comfortable but still durable enough to handle regular use. It doesn’t feel flimsy or like it will tear easily, which is important when you’re dealing with equipment that gets used in demanding environments. Installation is simple and straightforward. It fits standard regulators without any trouble, and the included tie helps secure everything in place. If the regulator connection ever feels slightly loose, that extra tie helps lock it down and prevents leaks, which is a nice added detail. Overall, this is a dependable replacement mouthpiece that does exactly what it’s supposed to do. It’s comfortable, durable, and easy to install—exactly what you want for a piece of gear that gets regular wear. Whether you're a casual diver or someone who spends a lot of time underwater, it’s a practical spare to keep in your dive kit.

My daughter loves it. Even just to goof around in the pool with. The hand pump though....be prepared to pump this thing for and hour. Going to look at getting an electric pump for it.

Directions suck, tank does not fill up at all, the directions are of a product that I was not sent. Pump is different Likely a gimmick, would love a working product that was in the directions

I am just a novice and have been exploring diving intermittently. My husband and I have some gear and decided a new mouthpiece would give us better confidence over the gear we have now. This mouthpiece seems well-made. The silicone is comfortable and also seems pliable enough to be able to hold-up in the demanding underwater conditions. The included tie is nice—that helps as a double check to ensure the seal is tight.

Don't buy this product if u want to use it under water. To refill the tank will take u about 500 pumps to get full. The instructions are not the best. Took me about 2 hours to figure it out. Took me another 45mins to get enough air into the tank to give me less than 5 mins under water. Waste of money for want I wanted.