The DIR Zone Pro dSMB 120cm is a long thin closed-cell delayed surface marker buoy that will get you seen in high waves. The base of the dSMB has a small metal D-Ring to attach to your line and a bungee loop to wrap it up when not needed.
The closed cell design means that once the dSMB is inflated it won't deflate on the surface. You can inflate the buoy through the one-way valve orally by blowing into it or with a standard LPI hose. As the dSMB ascends the air trapped inside it will expand until it is full and any excess will escape through the one-way dump valve.
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