You do not have to worry about heavy frosts or late blizzards. Kozy Coats will protect your plants through the worst spring weather. Even if the water in the Kozy Coat turns to ice, your plant is still protected. The Kozy Coat becomes an Igloo keeping in heat and warmth from the soil around the plant. Simply open the tubes, add water and place the filled teepees over your seedlings, young plants or vegetable crops. The earlier you plant, the earlier you'll be harvesting. 18" high and comes in a set of 2. Made in the Canada.