This self watering herb keeper from Cole & Mason allows you to keep potted herbs fresh longer and includes a reusable pad that keeps your herbs moist. The pad was designed to absorb the water from the vessel below and to hydrate the herbs. The herb keeper is very easy to refill and holds up to 10oz / 300ml. It is suitable for 1 pot (round or square) and fits up to 3.35" / 8.5cm diameter pots. The self watering herb keeper comes in a gift box and includes an instruction booklet. The herb keeper measures 5 x 5.25 x 5.25" / 12.7 x 13.3 x 13.2cm.