1. Material Made of durable waterproof PVC material, the slow release tree water bags can stably resist the ultraviolet rays of the sun, and it is durable and waterproof. Designed with water release hole and double sturdy carrying handles suitable for long time use. 2. Save time and effort: The 20 gallon water bag can be filled quickly and in a few simple steps (with hose thicknesses of up to 10 cm in diameter). The reduction in water consumption can be over 65% compared to the traditional irrigation method. With a capacity of 20 gallons (75 litres), it is a slow drip irrigation system that releases water for 6 8 hours. 3. Deep Root Targeting The water drains slowly for 5 9 hours, penetrates through the hole at the bottom, waters the tree continuously and effectively, and prevents water evaporation in hot weather. 4. Place the slow release water bag around the bottom of the trunk, tighten the zipper and pour water in. And tree water bags can be torn together ly to plant larger trees.