NO MORE LINES OR SHADOWS. The unique angles incorporated into our x-ray positioning sponges offer artifact-free imaging with no lines or ghosting. Our STEALTH COTE radiology positioning sponges are made of a soft open cell, polyurethane foam providing excellent support and comfort. Non-allergenic. New “fresh” light mint-green color. Our STEALTH COTE coated x-ray positioning sponges have a medical grade coating which creates a unique skin membrane that is anti-microbial, antibacterial and antifungal,.self deodorizing, durable and easy to clean. Surface is resistant to blood, Betadine, barium, alcohol, oils, and other fluids.