The Salvimar Wild Pro Speargun has a cylindrical 1.1" (28mm) barrel in aeronautical aluminum alloy. Bridge head to secure slings and ergonomic handle with heavy metal trigger mechanism. Elastics sling with threaded bushing make changing rubbers a breeze for easy maintains. Slings are 14mm (0.55") diameter and 5.5" (14cm) in length. The gun has a single Notched Tahitian shaft. Short model gun is easy to maneuver and great for small to medium fish.