GardenHOME 15 Gallon (57L) Tree Watering Bag - Durable UV Proof Material, Slow Water Release System for Over 8 Hours, 30% Money and Water Savings WATER SAVING: Slow release watering bag for trees, 100% water concentration. It delivers water directly to the roots with no run-off or evaporation. Great for newly planted trees with a trunk of less than 4-inches in diameter. Helps reduce transplant shock and drought stress.Save at least 30% on your water bill BIG CAPACITY: It holds up to 15 gallons (57 Liters) of water. The zipper can also zip two bags together to double the capacity for thicker trunks. EASY TO USE: It has an easy fill opening. A full bag of water takes about 5 to 8 hours to be completely empty. Easy Setup: Pop the bag open, Wrap around the tree and Fill with water. UV PROOF DURABLE MATERIAL: Made of commercial grade plastics with UV proof coating. Our watering bag is designed for outdoor use under all weather conditions IDEAL FOR NEW PLANT: Quicker and better results give your trees the best starting conditions and boost their growth. Our watering bag tree system is the best setup if you want your trees to grow quick and strong.