Trixie Diver Aquatic Ornament With Air Outlet ---Made from materials safe for aquariums, won't leach nasty or harmful chemicals into the water. ---The movement of the diver helps to create mini currents and further oxygenate the water. ---Assorted colours - colour will be sent at random. --- This Diver with Air Outlet would make a great addition to any aquarium. It is made from plastic and comes in various colours. The air outlet will make the diver look like he really is breathing under the water adding bubbles and movement to your tank.