UltraGel® Economax Gel Head DonutKey features include: Use to protect head, neck, ears or heels from skin damage as a result of restricted circulation from extended skin pressure. Self healing , will not leak or ooze if cut or punctured. Slow Micro transfer of USP mineral oil conditions skin. Body conforming with superior redistribution and equalization of skin pressure. Radio and X Ray lucent. Latex and Phthalate free. Seamless design for ease of cleaning. One year Replacement