Simply - Windowsill Self Watering Trays

Waters by capillary action. (3.4 Litres). Waters by capillary action. Fill the reservoir with water which is sucked up by the capillary matting supported by an inner platform. Just sit your plant pots on the matting to ensure they have a water supply. Dimensions - 76cm (l) x 17cm (w) x 3.5cm (h).