2023 New Upgrade Our self watering spikes are the newest upgrade version of 2023, The plant watering devices valve can more precise control the dripping speed compared to the old products. And it is perfect for potted plants, houseplants, patio plants, hanging baskets, deck pots, hanging plants and many more. Greater Compatibility Stop wasting your time to find the right bottle anymore, our plant watering device is suitable for all most bottles with 0.8 inch -1.9 inch inner such as Dr.pepper, Pepsi, Coca Cola, Lipton, Deet Coke, Aqufina. Easy to Operate No need to drill hole in the bottle bottom or cut the tail of the bottle, all you need to do is tighten the drip irrigation watering devices, and then insert it into the soil. The plant watering Device with control valve can control the dripping speed, and the sustained release drip lasts for 3-20 days. You can adjust the drip rate for optimal soil moisture based on your plant's needs and once you set it you never need to touch it again. Intimate House-keeper You dont have to water your plant every day. These self-watering spikes will take good care of your plants. They prevent over-watering and keep your plants hydrated. Enjoy your vacation with your family, leave your plants to me