General description These Set of 4 Terracotta Indoor Plant Watering Spikes are designed to simplify the process of watering your plants. They gradually release water through the terracotta material, ensuring your plants receive the right amount of hydration without the risk of over or under watering. The lighter color of the spikes indicates when it's time to refill them, making it easy to monitor your plants' needs. Technical specifications Material: Terracotta Quantity: Set of 4 Usage Ideal for potted plants, houseplants, patio plants, hanging plants, and outdoor gardens. Simply stick the spikes into the soil and fill them with water. Observe the lighter color to know when to refill with water.