MOLECAT is a durable and precisely engineered product that is 100% effective at killing burrowing pests. After anchoring securely into the exit hole, the trigger safety is rotated followed by turning the knob to the fire position. As the pest comes in contact with the trigger, the knob releases a powerful internal spring that detonates the blank cartridge, creating the no projectile explosive blast. The intense shockwave blows the pest into the tunnel for a swift kill. A red reset ring indicates when the cartridge has discharged. More efficient than a trap because the blast goes in all air spaces.