Double K - Equal Vent - Equalization Trainer Color:Blau Inflate it firmly enough for

Inflate it firmly enough for proper shape and support

knowing that the Octopus Lanyard has you anchored to security

Designed to fit common large freediving monofins

elastic and adjustable double silicone strap

The Delfit system is designed to create a close

Double K - Equal Vent - Equalization Trainer Color:Blau Inflate it firmly enough forDouble 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