Problue Tank Rattle with a Magnetic Cap summer-additions Rated waterproof to 100M (300FT):

Rated waterproof to 100M (300FT): Ensures durability and reliability even in the harshest underwater environments

Flatlock Stitching: Provides enhanced comfort

7mm) H-1042

Aerodynamic

Each barrel is meticulously pressure tested twice after production

Problue Tank Rattle with a Magnetic Cap summer-additions Rated waterproof to 100M (300FT):The Problue Tank Rattle with a Magnetic Cap is clearly audible underwater and also has a "muffler" which will prevent unnecessary sound whilst not in use. This rattle also comes with a clip for you to easily attach it to your BC or belt whilst not in use. When you wish to attract your dive buddies attention simply remove the cap (or muffler) and shake.