Upgrade Plant Waterer - This self watering spikes is the newest upgrade. Precise valve control switch, adjust the speed of water flow more easily and effectively. Fit for all most bottles. No tools are required for installation.(bottle not included)Adjustable valve - The plant watering Device with control valve switch can control the dripping to meet your needs. Provide different amounts of water for different plants and flowers. Make your plants healthier.Multi-Scene Application - Whether indoor/outdoor plant or garden, this self watering spikes system ensure your plants hydrated. And the watering device is perfect for potted plants, houseplants, patio plants, hanging baskets, deck pots, hanging plants and many more.Top quality and Eco-friendly - This plant watering system is made of material PP plastic, it can be reused for 30 years. Recycle plastic bottles effectively. Reduce waste and protect the environment.Worry-Free Planting - The upgraded design ofplant watering devices can make sure that the water pressure will not affected by the descended water level and the water in bottle will be ran out totally. Enjoy your vacation, it is able help you to water your treasured plants