2Doors with 4 zippers let the greenhouse can be completely closed to keep warm.GOOD SIZED PORTABLE MINI GREENHOUSE---- 71"WX 36"D X 36"H, Big enough to work for good sized plant pot & seed bed. Can be used both indoors & outdoors.OVERLONG COVER DESIGN---- Makes greenhouse more airtighted and secure, just bury it in the soil, easy way but useful.KEEP THE GROUND NICE AND WARM---- We had about a 95% germination rate instead of our usual 80% due to the good ground warmth! 2 Door with 4 zippers let the greenhouse can be completely closed to keep warm