1. Useful barrel covers: In this set you get 4 rain barrel covers and sufficient coverage for your daily needs. The black net has a fine mesh to prevent leaves, dirt and flies from entering the rain barrel and save you time for cleaning. 2. Wide applications: The rain barrel cover is perfectly suited for outdoor decks, lawn gardens, yards, porches and other areas where covers for catchment areas are required. 3. Material: Made of polyester, this rain barrel cover has a tight and thin mesh that effectively prevents small objects from entering the barrel. The sturdy material is resistant to scratches and tears and ensures longlasting use to collect clean water all year round. 4. Drawstring design: The rain barrel cover has a drawstring for easy and convenient use. Simply place the mesh cover over the rain barrel and tighten the drawstring to prevent it from being knocked over by strong winds in rough weather conditions.