The all new HK Army Blade Swab - Grey features a patent pending design utilizing a spring activated cleaning Blade. When inserted into the barrel of your paintball gun, the Blade sits at a resting position for smooth entry. As the swab is withdrawn the Blade springs into cleaning position to remove paint residue, shell fragments, and debris. The patent pending Center Flex Joint with locking screws activates the swab into ready position when removed from pocket. The two locking center screws guarantee the swab sticks will not come apart in your barrel while cleaning out paint!