PE Waterproof, smooth, high transmission of light, dust waterproof and heat preservation. Anti-aging, flexible and elastic. Interior and exterior use. Waterproof spray: it does not flee water and can ensure perfect waterproof protection on any occasion. plastic bachea: light, foldable, keep things dry. Good transmission of light, which is conducive to the photosynthesis of plants. bad weather resistance: it can be used in hot, cold, rainy and snowy weather, resistant to heat, cold and sun. Use in four seasons. The size can be personalized. multi-use: used in greenhouses, winter plants, pergola, garden furniture, windows, walls, factories, farms, ponds, cars , electric bikes, boats, campsite, animal roofs (rabbits, guinea pigs, chickens).