Greenhouse: Get a Garden Grow greenhouse - ideal for growing your own plants and vegetables. Strong and stable: There is also a heavy duty galvanised zinc steel base to provide extra strength. Polycarbonate: Safe, strong and beneficial to plants, it is 100% shatterproof and protects plants from harmful UV rays and burning in hot summer rays. Size and colour options: Medium 6.2ft x 4.3ft x 6.6ft in Grey or Green | Large 6.2ft x 6.2ft x 6.6ft in Green. Features: With a sliding door, integrated rain gutters for water collection and a roof window for ventilation. Made from: A strong aluminium frame with painted finish, and glass-free lightweight yet strong 4mm UV twin wall polycarbonate panels. Garden Grow Greenhouse | Medium | Living Social