Scuba Tank Knocker Elastic Band Tank Knocker Ball Bright Colors for Dive Instructors

Essential Tool: This scuba tank Knocker is a must accessory addition to your diving equipment, providing a reliable way to get attention in any underwater situation.

High-Visibility Notification: Designed as a highly effective underwater notification, the bright colors ensure you can be easily spotted by your diving partner or group.

Powerful Sound Output: This scuba tank knocker produces a loud, resonant 'clang' sound that is significantly more audible than traditional pointer sticks.

Construction: Featuring a dive cylinder knocker ball made from PA66 and silicone, it is built to withstand the rigors of frequent saltwater use.

Effortless: This diving tank noise maker is incredibly easy to use; simply pull the ball and drop it against your tank for an instant acoustic alarm.