Get the relief you need with the Spiky Massage Ball. A firm massage ball, this Pro-Tec product delivers a deep tissue massage and is great for helping with plantar fasciitis symptoms. To provide stimulation and boost circulation, the Pro-Tec Spiky Massage Ball comes with a spiky outer layer and is an ideal three inches in diameter for easy use and can easily be taken for relief on your travels. FEATURES: Great for helping with plantar fasciitis symptoms Firm massage ball delivers deep tissue massage Spiky outer layer provides stimulating effect and boosts circulation Three inches in diameter