Double K - Equal Vent - Equalization Trainer Color:Blau Do they make my fins

Do they make my fins smaller

Sie zeichnet sich durch ein großes Sichtfeld und ein extrem reduziertes Innenvolumen aus

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

Inflate it firmly enough for proper shape and support

elastic and adjustable double silicone strap

Double K - Equal Vent - Equalization Trainer Color:Blau Do they make my finsDouble 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