Palram Balance Hobby Greenhouse, 8' x 12', Green 4mm twin wall roof panels block up to 99.9% of UV rays and crystal clear virtually unbreakable polycarbonate panels that provide 90% light transmission Rust resistant aluminum frame powder coated green 96 sq. ft. of growing space and 7.5' of head room in the peak Includes two adjustable roof vents, integrated rain gutters, lockable door handle and galvanized steel base for structural support 5 Year Limited Warranty