Kangaroo For Him. Men’s maximum strength sexual enhancement. Last 72 hours. Increased stamina. Stronger erection. Increased size. Kangaroo’s premium blend has been scientifically designed for men to increase stamina and performance. Kangaroo is formulated to promote longer, harder erections and enhance sexual activity. Easy to be a man! The Kangaroo adult nutritional supplement that will enable you to last longer, have stronger erections, and increase your size and stamina! Nutritional supplement for men 18 and older.