The MONT large entrance greenhouse by Riverstone Industry is a strong DIY model that is made and popular in the USA. It featured with galvanized aluminum frame plus 8mm twin-wall polycarbonate panel that brings excellent insulation performance in the winter. The black frame will make your garden looks elegant and luxurious. The Riverstone industrygreenhouse comes with 10 years warranty, against up to 65 mph windspeed. The product line includes Basic, Premium, Mojave, Moheat and Grower package.