Holds up to 15 Gallons of Water Use to Water Newly Planted Trees Releases Water for up to 2 Weeks Dripper Regulates Flow Won't Over or Under Water Conserves Water UV Inhibitors for Long Life Easy to Use 14" X 22" Diameter when Filled Includes 1 Bag, 1 Stake, 2 Drippers, 1 Dripper PunchDalen