This Outsunny replacement greenhouse cover will allow you to keep your plant-growing going, if the old shell should ever come to damage. It's made from PE mesh cloth, which helps to protect your crops from any outside weather which might prevent them from growing fully. The bottom edge extends a full 20cm all ways, which gives room to add weights and keep the cover in place. It features 6 roll up windows to allow air to circulate inside, and it's finished with a large zipped door for easy access in and out.Features:Suitable for tunnel-style greenhousesA durable and tear-resistant replacement for old greenhouse covers - extends the lifespan of your product easily20cm overlap on all edges to weigh down. Best buried in the soilProtects crops from rain, wind, frost etc., whilst keeping heat inside for effective growingZipped roll-up front door for easy accessFeatures 6 windows to let fresh air insideAssembly required