The Penn Plax Action Air Shipwreck Aquarium Ornament is an exciting way to aerate your tank. This ornament authentically replicates a sunken ship that has broken into two pieces and lays on the ocean floor waiting to be discovered. Once attached to your air pump this fish tank ornament has moving masts that sway as if they were caught in the water’s current along with a small lifeboat that moves back and forth. Steady streams of small bubbles rise from the holes in the ship for even more visual appeal while providing the necessary oxygen to the tank. Aquarium ornament is made of quality resin and hand painted; measuring 9.5 inches across and 4.7 inches high by 2.5 inches deep. Boat can be displayed as one piece or the parts can be separated and positioned on an angle, over rocks, or anywhere desired in your tank. Air pump, tubing, and gang valve not included.