Protect your guns from rust and corrosion with the quick and easy Metal Defense Bore Stick™. Composed of VCI, a corrosion inhibitor, the Bore Stick is inserted into the barrel of the gun for set-it-and-forget-it protection. The Bore Stick™ will slowly emit molecules that create a protective barrier on the metal surface. The Bore Stick™ features a plug to cap the muzzle and with the firearm action closed, creates a sealed chamber for maximum effectiveness. Each Metal Defense Bore Stick™ will last two years. Track time elapsed by writing the date on the plug. Available in rifle, shotgun and pistol lengths, place one in each firearm to ensure when the season opens, your gun will be ready.