With these transparent sheets from Livingandhome, you can not only build up a better growing environment for your plants but also own a more durable greenhouse. Made of polycarbonate, the shatterproof sheets are excellent in heat retention and light transmission. Its also notable that the panels feature a cellular design to allow the air in and makes them thermal-insulating, so that the greenhouse can be warm in winter and cool in summer.(Tip This item requires assembly Living and Home 28 Pieces Clear Polycarbonate Sheets for Greenhouse Covering