This is a superbly detailed Polyresin Ornament from the 'Classic Underwater Kingdom' range, it has highly effective lighting effect (plug and transformer supplied). It has been tested for safe aquarium use. Fitted with an air-line (pump not supplied) for decoration as well as for tank aeration. It is fully non-toxic and enhances any tank environment. Directions for use: Position the ornament inside the tank Connect the transformer (as supplied) and plug in at the mains Attach the appropriate length of air tubing to the airline then to a correct strength pump Description of Ornament Inside the cove is decorated with a chest of jewels, skull, lanterns and pearls. The air-line is fitted inside the cove coming up from a mid centre opening and also one is situated on top of the cove coming into the inside of the cove.