Double K - Equal Vent - Equalization Trainer freediving equipment and the buoy marks the

and the buoy marks the training position clearly

A common problem is simple: where do you safely put the tag during ascent

Many problems are not caused by depth itself

Complete your equalization training

which will optimise efficiency later on in performances with longer blades

Double K - Equal Vent - Equalization Trainer freediving equipment and the buoy marks theDouble K Equal Vent PRE ORDER NOW! (delivery ~ end. August) The Double K Equal Vent is a compact equalization training tool for freedivers who want to practise pressure equalization outside the water. It is especially useful for divers working on Frenzel equalization, tongue control and dry equalization awareness. Equalization is one of the most common limiting factors in freediving. Many problems are not caused by depth itself, but by tension, poor