Sputnik Sea Urchins1 1/2 to 2". These striking sputnik sea urchins transport you to ancient ocean depths where spiky spheres once drifted through primordial waters. Each specimen showcases nature's geometric precision—delicate spines radiating outward like a celestial body frozen in time. Named for their resemblance to the iconic Soviet satellite, these shells capture the wonder of deep-sea exploration and the mysteries that lie beneath the waves. Perfect for collectors, coastal décor enthusiasts, or anyone drawn to the raw beauty of marine treasures. A tangible connection to Earth's aquatic heritage.