Trident Stretch Band Tank Banger Underwater Signaling Device

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Stretchy elastic band with slotted plastic ball attached Slips over any dive cylinder from 6 inch diameter and up Pull and release the ball to create a reverberating ‘clang’ on you r tank while underwater Plastic ball is constructed of durable, impact resistant hard plastic Essential safety equipment: never dive without a signaling device The Trident Stretch Band Tank Banger Underwater Signaling Device makes it fast and easy to get a dive buddy’s attention at depth, or on deck. The stretchy elastic wraps around any dive cylinder from 6 inches (15cm) and up. Pull and release the impact resistant, oval, slotted plastic ball to create a reverberating ‘clang’ on your tank. Essential safety equipment: never dive without a signaling device. Assorted colors. Show more