Lightweight, portable greenhouse; great for sprouting seeds and starters; extends growing season; Sturdy, tubular, steel frame; powder-treated for added durability; 4, 27-by-18-inch, wire shelves; support plants up to 13 inches high; Clear PVC cover; provides sun exposure and insulation; unzips and rolls up for fresh air in warm weather; Measures 63 by 27 by 18 inches; weighs 12-1/5 pounds; limited warranty; requires some assembly;