For underwater use. The super-stretchy silicone band can wrap around any dive cylinder from Ø6” (15cm) and up. The hard plastic ball can be pulled and released, producing noise to attract attention.
The Tank Banger from IST is a very effective signalling device. The IST Tank Banger works by sitting round your cylinder and and is hit against it when needing to attract attention. The tank banger is perfect for attracting your dive buddie attention without frightening off fish or wildlife.
