SUITABLE SIZE Perfect for 39''x47'' size plants, Heavy FRC: Are generally used to extend the growing season in spring and fall, allow 30-50% light transmission and recommend 3-8°F. frost protection. DRAWSTRING DESIGN Easy drawstring opening makes it easier and faster to cover plants in bad weather. BREATHABILITY High quality UV stabilized spunbond polypropylene fabric allows air and moisture to reach your plants. Lightweight and soft fabric is plant friendly, no harm to plant growth. APPLICATION Protect plants from snow hail, frost in winter and insects, birds during the growing season, no need to remove every morning and replace every evening.