Self-Watering Herb Keeper, 5 x 5.25 x 5.25" H / 12.7 x 13.3 x 13.2cm H, carbon steel.Keeps potted herbs fresher, longer . Includes reusable Hydro Felt Pads that keep potted herbs moist and watered. The hydro pads are designed to absorb water from the vessel below and hydrate the potted herb above. Easy-to-fill water reservoir holds up to 10oz / 300mL. Hand wash. Instructions booklet with Tips and 2 recipes.