Pepper Spray Ring
This ring provides 2-3 one second bursts of concentrated pepper spray, and has an effective range of 12 inches. (Press the small button on the side to spray.)
The ring's spray has a heat rating of 2 million SHU - causing inflammation of the eye capillaries and all other mucous membranes, resulting in immediate temporary visual impairment, difficult breathing, coughing, choking, sneezing, and nausea, with acute symptoms and discomfort lasting for 45 minutes.