Lightfield LLR's Double Ball is a mid-range less-lethal impact munition using two .73 caliber balls. Fired from a 12-gauge less-lethal launcher, this munition is intended for direct or indirect fire at targets between 20 and 40 yards. (Minimum engagement distance is 15 yards.) The user should only target large muscle groups and soft tissue from the abdomen and below. Always avoid targeting the head, neck, thorax, spine, kidney area and groin as serious injury or death may occur.