This listing is for a new 4-pack of Tree Watering Ring 15 Gal self irrigation bags for shrubs. The set is suitable for buyers who want a simple watering aid for multiple plants, whether for home landscaping, yard care, or routine plant maintenance. Free Shipping is included, which may be helpful when comparing total cost. Since the title specifies a 15-gallon size, shoppers can use that as a basic buying reference when deciding if this type of watering bag fits their needs. No color, material, or additional specifications are provided here, so check the listing for full details before purchase. 4 Pack - Tree Watering Ring 15 Gal, Self Irrigation Bag for Shrub FREE SHIPPING. Color: Brown, Condition: New. Listed at 55.99 USD. JM GARDENS is a slow-release irrigation bag for new and stablished plants and trees. - Put the bag around the tree. - Insert the hose in the hole located on the top of the bag and star filling. - Capacity of 15 gallons (56.8 L) of water.