This easy-to-assemble cold frame gives you the protection you need when starting plants early or protecting late season. The compact size fits almost anywhere but still provides over nine square feet of growing space. Adjustable, ultra-clear covers provide excellent ventilation while giving you easy access to your plants. Crystal-clear polycarbonate SnapGlas™ roof panels Clear polycarbonate roof panels allow maximum light transmission. Easy-to-assemble frame Corrosion resistant aluminum and rigid polypropylene frame assembles quickly and easily. Adjustable Ventilation Adjustable, roof door provides excellent ventilation and easy access.