2pcs Rectangular Winter Protection, Frost Covers for Flower Boxes with Pull Cords Rectangular Flower Box Protective Cover: designed to protect plants in rectangular flower boxes on balconies, window sills and patios, it is made of high-quality materials and has a sturdy structure that resists wind and rain, protects against frost damage, prevents excessive sunlight, and prevents small animals from damaging plants. OVERALL PROTECTION: The protective cover can completely cover the flower box, it not only protects the plant's leaves and flowers, but also protects the plant's root system. EASY TO INSTALL: Our protective cover is available in a wide range of sizes, so whatever the size of your planter box, you will always find one that suits you, and when you need it, simply slip it over the entire box and secure it with a drawstring; the practical drawstring holds the cover in place. Durable and reliable material: our frost protection covers are made of lightweight polypropylene (PP) plant protection netting weighing only 50 g/m2, a lightweight material that ensures that your beloved plants are not harmed. Ideal for plant growers, give your beloved plants top quality protection and let them thrive under the care of your rectangular flower box protectors. Act now to give your plants a safe, comfortable environment to show off their best.