Tank Banger

The Oceanpro tank banger slips over your tank and is used to get the attention of fellow divers by knocking against your the tank very effective signalling device. Useful safety or general communication device to get your buddys and other divers attention underwater. Simply attach the tank banger around your scuba tank where it can stay throughout the dive. If you ever need to quickly get your dive buddies attention, pull the ball on the elastic band out and release to create a sharp ding. 

Tank Banger