75l Tree Irrigation Bag,watering Bag The product is shipped based on the color or size of the main image of the product page. Durable PVC Tarpaulin Material - tree watering bags are made of ported laminated PVC tarpaulin, stronger and more sturdy. With zipper and handle design, they can be more comfortable and easily transferred from one tree to the another. Garden Watering Bag Capacity Tree Size -garden watering bags with 20 gallon capacity are great for newly planted or established trees from 2 inch to 8 inch in trunk diameter, with branches beginning at lease 25 inch from the ground. For larger trees, please zip multiple bags together: 2pcs watering bags together will fit for 6 inch to 16 inch diameter trunk. PLEASE NOTE: For a really young saling that within 2 inch in diameter, may be too small to use this bag. 5 to 8 Hours Release Time - Two micro-perforated release holes along bottom seam and with 20 gallon capacity, this slow drip irrigation system that will release water for 5-8 hours. The filling frequency depends on the weather, types of plants drawing water. The Professional Slow Drip Irrigation System - slow release tree irrigation bags provide continuous irrigation to make tree watering easy, reduces transplant shock for newly planted trees, perfect to use for watering during a drought.