Contents: a decorative car. Bus size: 13 x 7.5 x 8cm Material: Made of non-toxic resin, odorless, lightweight and stable when standing in your aquarium. No effect on fish. Simulated Car Wreck: Our ornaments are suitable for home aquariums, they can create a realistic world for your aquarium, providing visual interest for you. The aquarium decorations will add more flavor to your aquarium and also provide shelter for your fish. 【 Make air bubbles】 Connect to air pump to increase oxygen by decreasing CO2. Create many small bubbles, increase the natural landscape of your aquarium to give vitality to your fish. Flat Bottom: The flat bottom of the topper is flat enough for it to stand stable in one place of your aquarium. Durable and easy to clean; just wash it under running water when you change the aquarium water.