Green Sea Urchins 1 1/2 to 2" Imagine holding a piece of the ocean's ancient artistry—these genuine green sea urchins capture the raw beauty of the seafloor. Each specimen, naturally colored and sized between 1½ to 2 inches, tells the story of life beneath the waves. Perfect for collectors, coastal décor, or as a tactile reminder of ocean wonders, these shells showcase nature's intricate geometric patterns. Their verdant hue and delicate spines make them conversation starters for any shelf or display. Whether you're drawn to the sea's mysteries or seeking an authentic natural treasure, these green sea urchins connect you to the timeless rhythm of marine ecosystems.