Deliver deep soak irrigation to newly planted trees with a 4 pack of 20 gallon watering bags. Each bag wraps around a trunk up to 4 in in diameter zips closed and empties slowly over 5 to 9 hours so water reaches deep into the root zone instead of running off the surface. Heavy duty weather resistant Pvc resists punctures from bark and tree limbs and reinforced nylon zippers plus sturdy handles support full capacity loads. A 3.54 in fill port accepts most garden hoses speeding refills.