Aluminum Alloy Diving Tinker Stick Calibrated Wnderwater Probe Bar with Hand Rope

1. Material: aluminum alloy.
2. Specifications: 350x8mm.
3. Weight: 55g.
4. Features: It has functions of measurement, indication, tapping sound, buoyancy support, etc. It is a multifunctional and practical small object, which is convenient to carry around.
5. Function: It can replace various hands to explore various unknown creatures on the sea floor, with scales can be used as a ruler to measure marine life, bring more fun, or tap the oxygen cylinder to signal when you need to notify your partner, you can hang In your hand or in BC.