No need to worry about over-watering with the handy and functional Water Bulb Copa XL! Easy to use, simply stick the end of your copa into your plant's soil and fill the mouth with water which will then gradually release into the plant through the clay tip end. Because the soil only extracts what it needs the risk of  over-watering is eliminated.

Water reserve for up to 11 days.

Holds 500ml. Measures 10"