Tuftex PolyCarb 2.17-ft x 12-ft Corrugated Clear Polycarbonate Plastic Roof Panel93% Light transmission Clear panel provides diffused light Perfect for extreme temperatures (270 F to 40 F) Lifetime limited warranty No special tools required to trim or install Lightweight and easy to handle Heavy duty, perfect for greenhouses and other exterior projects Classic octagonal wave profile Should be installed over white color supports with proper ventilation Features Series Name PolyCarb Profile Corrugated Length (Feet) 12 Width (Feet)