This is an octopus holder that snaps onto the mouthpiece of your octopus. It protects the mouthpiece from getting dirty when you're not diving, so it's useful both on land and underwater. It holds your octopus securely underwater, making it an amphibious holder. On land, you can of course use it to protect the mouthpiece of your main second stage regulator. Diving Scuba Diving Scuba Diving Underwater accessories Snorkeling Free Diving Skin Diving