The cover of the hot house has two functions: it protects plants from everyday weather and keeps them warm in times of colder temperatures.The lightweight design of the plant greenhouse means it's quite easy to move when needed while still proving stability with its metal steel frame. Tunnel-style greenhouse with solid steel frame and PVC plastic cover Ideal for extending plants' growing season and protecting from outside weather 4 rollup zippered doors allow for easy access and good air ventilation Plastic joints are easy to carry and assembl Wipe clean Imported Request warranty information Your security is our number one concern