Constructed out of very strong galvanized steel. This aluminum greenhouse is UV coated for the rest of their life span! The frame, glazing and base are all packed separately with fitting and instructions

Very Light, extremely strong and completely safe! These mini greenhouses are nearly unbreakable products, and are nearly 200% safer to use than glass greenhouses. Glass greenhouse kits can shatter, causing fragments of glass to fall and a high level of danger. This isn't a worry with this aluminum constructed hobby greenhouse!