Package Included20pcs Upgraded Version Automatic Watering Set + 20pcs Fixed Support Structure + 1 Pen (For Bottle Drilling), Made of PP plastic and you can use it repeatedly, long service life . With high strength and toughness, good heat and cold resistance, safe and durable More precise control of drip rate Exclusive patented drip switch, easy adjustment, every time turn, the water flow only changes slightly, truly realizes the fine adjustment of water flow. The longest dripping time can be set to 60s/drip, can effectively control the water flow, extend the dripping time, greatly improve the old version cannot be accurately controlled flow disadvantages Water Suitable for 99% of Beverage BottlesBottle cap design, no need for rotation installation. Simply place the fixative on the bottle and turn the bottle upside down. Suitable for mineral water and beverage bottles with an inner diameter of 0.8" to 1.2", it is suitable for 99% of beverage bottles on the market Support Anti-TipEach self-watering spike is equipped with an anti-tip bracket with a total of 20 pieces. The rack can hold the heaviest weight, avoid spillage due to excess weight when using large bottles, and also prevent wind from blowing. ENJOY YOUR HOLIDAY - Spend time with your family, leave me your plants. Use a self-watering spike kit to relax without worrying about your plants. Our automatic pot watering system is ideal for watering indoor flowers, outdoor plants or your vegetables on vacation