The Palram 6\' x 4\' Nature Hybrid Silver Polycarbonate Greenhouse is an ingenious greenhouse offering the gardening enthusiast a precise balance of 2 advanced virtually unbreakable polycarbonate panels along with a strong durable rust-resistant aluminium frame, while perfectly designed to fit smaller spaces so you can start growing earlier and continue growing later. The twin-wall roof panels block up to 100% of harmful UV rays and diffuse the direct sunlight; the crystal-clear side panels offer over 90% light transmission. Strong and attractive, this Hybrid Greenhouse offers years of maintenance free gardening enjoyment. Easy DIY installation thanks to the simple \'sliding panels\' assembly system. A galvanised steel base is included with designated holes for anchoring (anchors not supplied) for additional structural stability