Makes sound signal underwater to get your diving buddy's attention quick and easy with the Aquatec Tank Banger.

It is made of elastic stretchy rubber that can be stretched to 2 times longer and fits comfortable 12-14L tanks. With a flexible loop which allows the banger to hit the tank effectively making this a Ssmple, reliable, long lasting and easy to use communication tool.

Features:

• Material: PVC.
• Loop Perimeter: Approx. 45cm /17.72inch.
• Ball: Approx. 3.3 x 3.6cm /1.30 x 1.42inch.