Product Description Size: 20 Gallons Product Choices: 1pc, 2pcs How to Use: - Wrap both sides around the trunk and zip up. Make sure the bottom of the bag is properly unfolded - Using a hose, fill the bag to 1/4 capacity, gently lift on the straps at the top of the bag to expand the bottom , and fill the bag with water to the desired level and water continuously for about 5-8 hours. - Fill the bag with clean water 1 to 2 times a week or as needed. If you use pre-mixed water-soluble fertilizer, make sure it is dissolved. Key Features: 1. Better Than Regular Tree Watering Bags On The Market- Our bags have improved the following points: a. Heavier green heavy duty PVC tarpaulin fabric, stronger and sturdier; b. Larger zipper with reinforced double stitching, difficult to break or torn out in the thread area; c.4CM Wide Handle Tape, more comfortable and stronger; i.e. Two micro-perforated release holes along the bottom seam ensure the bag is empty in about 3 to 8 hours. 2. Professional Deep Root Drip Irrigation Design - Save Time, Water and Effort: The bag is designed to protect tree roots to provide a drip irrigation system directly over a longer period of time. Make sure your newly planted t-shirts survive their crucial first year after planting. It eliminates the severe water stress that new trees experience after transplanting by delivering a large volume of water directly to their root system. 3. Bag Capacity and Tree Size- This bag can hold up to 20 gallons of water. Single bag fits min.1" to max. 4" diameter tree with branches at least 25" off the ground; Use 2 individual bags zipped together back-to-back to water trees 4" to 8" in diameter. 4. Very Easy to Use - Wrap the bag around the tree base, zip up the bag, insert the hose into the opening under the handle and start filling (hose max. 3 inch diameter).Drip holes slowly release water after an initial water flow.Continue to fill the bag to 1/4 capacity, then gently lift by the ties at the top of the bag to expand the bottom and fill the Fill bag with water to desired level and water continuously.Refill bag 1 to 2 times a week or as needed.