Tiger Ball 1.7 Massage-On-A-Rope. This tool is perfect for smaller muscles. Perfect foot massage ball for plantar fasciitis. You can use this tool with or without the rope. Simply press the ball into the muscle, lean up against a wall or lie down on the ground. Perfect for busting out knots, trigger points, and sore muscles in the feet, back, shoulders, neck, arms, and other spots that want deep pressure. 1.7” massage surface. Rubber ball; corded rope handles. The corded rope is approximately 50” long.