Pure Natural Plant Protection Bell Jars can effectively block snails, birds, poultry, squirrels, hail, sunlight and frost, stop snail fences without using chemicals! Provide you with healthy vegetable plants. High Quality Pure Natural Material Our plant bell jar covers are made of high quality PET with increased thickness, flexible enough to recover after accidental squeezing, more durable for long-term repeated use. Pure Natural to Create Microclimate The plant cover is like a small greenhouse, creating a microclimate. The top of the plant cover is ventilated to help plants circulate enough air and water for good growth. Good Light Penetration The humidity domes and ventilation are carefully designed with transparent materials, allowing maximum light penetration and minimal reflection, creating a comfortable and healthy plant growing environment. Easy-to-use All Natural Plant Protector is placed directly on small plants. Alternatively, there are three small holes on the bottom where