Pepper Shot 1.2% MC pepper spray comes with a hard case belt clip and a quick release keychain. The Major Capsaicinoids (MC) are the true heat measure. Pepper Shot 1.2% MC is more effective than most other pepper sprays. In addition to causing an attacker pain it swells the mucous membranes, making breathing difficult, and swells the veins in the eyes, causing the eyes to close. These effects can last up to 45 minutes but cause no permanent damage. And it has a UV identifying dye to aid in the identification of an attacker. This 1/2 ounce spray provides 6-10 one-second bursts at a range of 6-8 feet.