2 Compatible Zombie Strike Replacement Shell Sledge Fire SledgeFire FOR DART BLASTER That's Right a Total of 2!! Due to the nature of 3D Printing, may contain some very slight imperfections. Nothing major! Darts and DART BLASTER Guns are not included, this is for the TWO BLUE Zombie Strike Dart Shell Sledge Fire Blasters Only as shown in last few photos. These Perform Outstanding!! I have been told by the majority of my customers, with my unique design - the range is even great than the original DART BLASTER Shells and you don't need to MOD!!