Material and Size: The tree watering bag is made of PVC, which is the best material to hold water for long hours, can be used for a long time. Large Capacity: The watering bag holds up to 15 gallons of water with continuous water for 3-8 hours, just refill 1-2 times per week or as needed. No need to water frequently, save water and labor. Easy to install: put the water bag around the bottom of the tree trunk, open the cover on the top of the irrigation port , put the water hose into the irrigation port to start injecting watering, and cover the lid after filling. Wide Applications: The tree watering bag is ideal for newly planted trees, evergreens or shrubs, adapts to plants up to 14 cm in trunk diameter, promotes deep root growth. Ideal gift choice: the PVC watering ring can not only be used as a personal item, but can also be given to friends and family members.