GUNNER offers a keyed locking door to ensure that no one can steal your dog from your crate. Our Security Lock Kit accessory ensures that no one can steal your Gunner kennel from your truck or vehicle. This high-strength, black powder-coated bracket is used to secure your GUNNER dog crate with either a security chain or cable lock. The design allows installation for 6 different positions on the G1™ Intermediate and 7 positions on the G1™ Large.