Frost Protek Plant Cover for Containers -Transition from Greenhouse -Drawstring -Garden Fabric for Protection and Insulation -42" High START STRONGER...GROW LONGER. Container Cover is designed for plant protection during the growing season. Provides greenhouse effect to give transplants and young plants a strong start. Weather protection from light frost, cool nights, wind, and heavy rain. Organic pest protection from birds, rabbits, squirrels, insects, and more. Lightweight breathable fabric allows air and UV light to reach plants. No need to remove each morning and replace each evening. It will not damage plants. Fabric is non-woven polypropylene, which is used by commercial growers for plant protection. Fabric weight is 0.9 ounce and protects to about 26 degrees Fahrenheit. Reuse season after season. 98% POSITIVE REVIEWS by members of the National Home Gardening Club. Read more in the Product Description below.