Double K - Equal Vent - Equalization Trainer Color:Blau The Delfit system is designed

The Delfit system is designed to create a close

Just try to pinch your nose and to vary the pressure you put on it

Do they make my fins smaller

Inflate it firmly enough for proper shape and support

gloves and hood Can be stored in smaller pockets or separate areas

Double K - Equal Vent - Equalization Trainer Color:Blau The Delfit system is designedDouble 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