Scuba Cylinder Signal Ball, Diving Tank Banger Elastic Wide Application Loud Anti Slip for Outdoor Sport(Black strap + black ball)

• Much Louder: Set on your diving cylinder, pull the ball, it makes a much louder sound than other diving equipment, practical diving accessories.
• Much Louder: Set on your diving cylinder, pull the ball, it makes a much louder sound than other diving equipment, practical diving accessories.
• High Elasticity: Strap part has high elasticity, that the hitting ball can be used on most cylinders of different sizes.
• Easy to Use: The knocker ball is easy to hold and use in underwater situation and environment, increase the possibility of being helped in special condition.
• Using Method: Put it on a diving cylinder, pull the strap in the water, and when you let go, the ball will hit the tank with a loud sound, making you easier to be heared by your partner or others.

Feature: 1. Light Material: Made of silicone and PA66 material, which is light weight, easy to carry, durable, can be used for a long time. 2. Easy to Use: The knocker ball is easy to hold and use in underwater situation and environment, increase the possibility of being helped in special condition. 3. Using Method: Put it on a diving cylinder, pull the strap in the water, and when you let go, the ball will hit the tank with a loud sound, making you easier to be heared by your partner or others. 4. High Elasticity: Strap part has high elasticity, that the hitting ball can be used on most cylinders of different sizes. 5. Much Louder: Set on your diving cylinder, pull the ball, it makes a much louder sound than other diving equipment, practical diving accessories. Specification: Item Type: Diving Cylinder Knocker Ball Material: Silicone + PA66 Application: For Underwater Signal, Outdoor Sport Weight: Approx.37g/1.3oz Package List: 1 x Diving Cylinder Knocker Ball Note: Diving Tank Banger