☉Smart Auto Irrigation: This product automatically penetrates through the water needed by the roots of the plant and the humidity of the soil. Water will slowly seep through the terracotta at the bottom. No need to worry about soil and nutrients disappearing. ☉Adjustable Valve: The plant watering Device with control valve can control the dripping of 0-60s/drip, and the sustained drip lasts for 1-15 days. ☉Easy to Operate: No tools are required for installation, No Need drill or cut holes at bott