Handcrafted from genuine teak wood, the BOWSWIM® Teak Tether Adjuster allows one to customize their position in the water. With a simple slide of the adjuster, one can easily switch from vertical to horizontal position. The properly tensioned tether creates “Variable Custom Lift” allowing one to maintain a nearly horizontal position in the water. This unique ability of BOWSWIM® allows water based resistance exercises never before possible. It is changing the nature of water exercise by allowing a complete full body workout in an impact free, stress free, nearly risk free exercise environment.