Feature●1.Club head with ball adapter - The head comes with a standard 1-inch ball head that can be fitted with flash, video lights and makes backlighting easy.●2.Aviation aluminum alloy - high strength aluminum alloy resistant to seawater corrosion anode hard oxidation, more durable.●3.Built-in calibration - The rod body comes with a 10cm laser calibration, accurate to mm, which helps in underwater biological observation.●4.Adjustable buoyancy anchor - can be adjusted to any position according to the actual situation.●5.Self-fitting lanyard - with wrist woven nylon rope, easy to carry.Description