Features: Skeleton Pirate Captain: Action aerating skeleton at the wheel turns your once simple aquarium into the spooky depths of the sea. As bubbles rise the phantom pirate appears to be moving the wheel. An air pump, tubing and air valve (not included) are needed to make it alive. Bubble action makes phantom pirate move the helm, provides aeration for a healthy aquatic environment. Size Details: The size is 12x12x14cm/4.72x4.72x5.51inch. Please confirm whether this size is suitable for your fish tank and fish before purchase! Main Material: Every component of the aquarium decoration is made resin and plastic with environmentally friendly, durable, sturdy. Universal Fit: Can also be used for other fish such as shrimp, crawfish and cichlids. Designed for both fresh and salt water aquariums,can adds a mysterious to your fish tank,your fish will have fun all the day. Warm Tips: If you think this aquarium ornament is too light to float up, you could use the two bottom black plates to jam, or press it with stones. Specifications: Type: Aquarium Ornament Material: Resin, Plastic Color: As Picture Size(L*W*H): About 9x6x13cm/3.54x2.36x5.12inch Package Included: 1pc x Aquarium Ornament Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.