Tank Banger ? Underwater Signalling Made Easy
The Tank Banger is an effective and diver-friendly way to get attention underwater. Simply wrap the super-stretchy silicone band around any cylinder 15?cm and larger, and hit the hard plastic ball against the tank to produce a clear, audible signal.
Perfect for alerting your dive buddy without disturbing fish or wildlife, it?s lightweight, easy to use, and essential for safe underwater communication.
