The Door Bull SWISS TYPE KNIFE Turbo-Nitrogen Technology (TNT) Gas Piston

Turbo-Nitrogen Technology (TNT) Gas Piston

Runs on easy to find 12 gram CO2 cartridges

Why not a smart self-defense product

Dull Blade - For Practice & Training

The dog Repeller will produce a discomforting but not harmful high frequency sound

The Door Bull SWISS TYPE KNIFE Turbo-Nitrogen Technology (TNT) Gas Pistonhe Door Bull is a powerful barrier to keep your home, business, or classroom safe. It attaches easily to inward opening doors, making it virtually impossible to force the door open. The Door Bull Stops Them! It's more robust and powerful. And it helps your door frame do its job, by distributing the force more evenly and at the appropriate angles. Do not settle for old fashioned, ugly, oversized security bars for doors! Smart & Strong: Our precision