Easy To Use - This irrigation system simply screws onto the head of a water bottle. fill the bottle with water, turn it upside down and plant it in the ground next to your plant. Watering kit can diffuse water little by little at the foot of the plant to water it. Simple and effective automatic watering. Advanced design - This irrigation system is made of ABS and ceramic plastic which has good heat and cold resistance, resistance, is safe and non-toxic, does not damage the value nutrition of the soil, the conical nail can be easily inserted into the soil. Fertilizer application - In addition to the normal moisture supply, you can also add water-soluble fertilizer to the water tank, in proportion to water, and reduce the problem of fertilization. Friendly Eco-Friendly - These are reusable water tips. Find an old bottle of appropriate size (like drinking water bottles) for your self-watering spikes; you dont need to throw it somewhere, which helps to create a friendly environment. Enjoy your vacation - Enjoy the time with your family, these self watering spikes will take care of your plants. Whether your plant is indoors or outdoors, in the garden, at home or in the office, the automatic watering system ensures that your plants are always hydrated. It can also save time and energy without having to water daily. Size: as shown Color: green white Shipping quantity: 4 pieces