Jumping rope is super fun for kids with energy to burn. With just a simple rope, some music, and an active imagination, kids can create elaborate games and dance routines that have endless variations. This deceptively challenging activity is also great for boxers, MMA fighters, and everyday athletes, and gets your heart rate up even if you just have a few minutes to exercise. Predictably, adults are more concerned with technique and results than making their rope slither like a snake. These four quality jump ropes for grown-ups will help you meet your goals.