Spitfire has recently been awarded four patents from the United States Patent and Trademark Office for unique technological advances in chemical dispensers. This excellent self-defense tool is strong, discreet and convenient to carry. Each Spitfirer dispenser is handmade in the USA and ultrasonically welded for maximum strength. Spitfire is robust, reliable and waterproof. Dispenser is engineered to reliably hit an attacker in the face. Snap-free key ring pops free from keys for quick use. Automatic safety. Child-resistant.