This is 12 Gauge Tail Stabilized Pen-Prevent Bean Bag Ammo. This ammo is manufactured by A.L.S. Technologies, the leader in Less Than Lethal Ammunition. This is the industry’s only Drag Stabilized 40 gram ballistic bag utilizing Pen-Prevent. This round produces a painful and powerful blunt impact at 7 to 20 yards, which reduces your liability profile in relations to lethal ammunition. The Pen-Prevent was developed to overcome the shortcomings of conventional bean bag ammunition. A specialized material design is used to minimize penetration generally associated with .75 inch diameter bean bags. This round remains in a more aerodynamic configuration due to the extended nylon tail. The aerodynamic design virtually eliminates missed target zones caused by errant projectiles and ensures the same strike profile, removing any possibility of spinning or fluttering shot after shot. This ammo is 2 3/4" and is safe to shoot in all 12 gauge weapons.