The Autopot Coir Mat, measuring 51 cm x 30 cm x 3 cm, is made from coir and latex and comes with a custom-made root control sheet. The coir mat retains the required moisture and waters the plants for up to ten days. The mat regulates watering by retaining the water through capillary action and gradually releasing it. Simply place in a tray, fill with water, place the seed tray on top and grow!