Size options: Choose from 4 sizes - 2 tier, 3 tier, 4 tier or 5 tier (see full details for dimensions). Durable: Crafted from PVC material that is both durable and corrosion resistant. Please note: This is for a PVC cover only. Frame is not included. Greenhouse cover: Grab yourself a PVC garden greenhouse insulating cover. Secure: Equipped with a zipper on either side to keep your plants secure. Protective: Shelters your plants from harsh weather elements while allowing them to absorb more sunlight - provides plenty of room for growth and keeps bugs and pests away. Pvc Greenhouse Cover | Living Social | Living Social