Store +3 Tank Banger 51.529.000 $19.00 In stock Quantity: 1 Add to Bag Product Details OVERVIEW Making noise under water doesn't get any simpler than this. FEATURES Elastic band, made of surgical tubing, is fitted with a hard plastic ball. Stretch the band over your scuba tank. To get your buddy's attention, reach back, grab hold of the ball, pull it away from the tank, and let it go. The clang is sure to turn heads. Save this product for later Favorite