- Environmentally friendly porcelain steel surface is featured with Ultra Trim, a slim 5/16" anodized aluminum frame. - Cradle to Cradle CertifiedCM - Silver, GREENGUARD Indoor Air Quality Certified® and GREENGUARD Children & Schools CertifiedSM. Certified boards incorporate material healthfulness, material reutilization, renewable energy use, water stewardship and social responsibility. - Virtually indestructible magnetic porcelain steel surface provides superior writability. Permanently bonded to a particle board substrate. Magnetic Q-Tray included. - Class A Fire Rated board. A full test report copy is available upon request. - 50 year guarantee. - TAA compliant.