Seac Sub Sting Spear Gun with Sling, Aluminum Finish Barrel: in extruded anti rust aluminium to maximize resistance and prevent bending. Double muzzle: allows mounting of one or two slings Handle: new anatomic grip and sternum rest and line release trigger and safety catch in high-strength, shockproof Nylon Triggering device: in stainless steel and filled polyamide to ensure the utmost functionality and reliability. Sling: in latex, amber coloured, 16 mm diameter.