The First Material of Its Kind We introduced a Zinc, Magnesium and Aluminum coated steel. The addition of Magnesium to this formula revolutionizes its ability to resist corrosion. Exceptional Performance Highly Corrosion-Resistant Better Performance in Highly Alkaline and Highly Acidic Environments Superior Heat Reflection No Soil Contamination Sustainability 20+ Year Life Sustainably Organic Material 100% Recyclable 100% Safe USDA Compliant Paint We have combined the Zinc, Magnesium and Aluminum coated steel with our USDA compliant AkzoNobel paint to develop a new material which we call VZ 2.0L-Shaped Large W x L x H: 7 ft. x 7 ft. x 17 in., Grow Area (sq. ft.): 28.75 Cubic Feet: 41 Cubic Yard: 1.5. Color: Modern Gray. Material: Metal.