The Vevor tree watering bag set provides slow, deep watering for newly planted or drought-stressed trees and shrubs. Each bag holds 20 gallons and releases water over 3 to 4 hours to help promote healthier root hydration. Made from heavy-duty PE woven fabric, the bags are designed for repeated outdoor use with reinforced zippers and handles. The 25-pack fits trees with 2" to 8" trunk diameters, and two bags can be zipped together for larger trunks. Quick filling and water-saving operation make them ideal for home gardens, orchards, and landscaping projects.