Tactile Hedgehog Stones are like no other walk-on domes. Each is manufactured like half of a tactile ball with a convex undersurface that grabs onto a smooth surface like a suction cup. Step on one without shoes and be greeted by the stimulation of cushioned, smooth bumps. Hedgehog Stones are soft, yet return immediately to their inflated state, ready for the next user's foot. They provide a unique sensory experience.