This kind of plant watering device solves the trouble of watering flowers and plants every day and no one to take care of while on business. Save your time and energy, suitable for outdoor and indoor, long service life and affordable. Features: Self Watering: It will draw water into the pot as the plant needs. And automatically adjust water amount upon soil moisture. Simple and effective ways to water your plants when you are on vacation, business trip or forgetting to water them. Save your time and energy. With self adjustment of water volume, this device can make your plants receive the correct amount of water. Provides water straight to the plants roots, suitable for most outdoor and indoor plants. Made from ceramic and durable plastic, high-quality and long-lasting. Fits most water and soda bottles. Specifications: Main Material: ceramic+plastic Product size: 124cm Quantity: 4pcs Package size: 146*4cm Package weight: 110g Package list: 4 x Plant Self Watering Spikes