The Lifetime Early Start Enclosure protects the seedlings in your raised garden bed from frost and other outdoor elements and extends the gardening season. This small greenhouse enclosure can be used alone or in combination with the Lifetime Raised Garden Bed. It has a double door design with the exterior door made of clear plastic, and an interior door made of netting. The plastic door can be tied back during warm days and the net can tie back to allow for insect pollination. The Early Start Enclosure is made of clear, plastic vinyl and attaches to the Lifetime Raised Garden Bed.