【Wide Application】 this fish tank ornament is safe for use in both freshwater and saltwater aquariums and fish tank.Package Included: 1 x Aquarium Ornament 【Premium Material】This aquarium decoration is made of high quality and non-toxic resin which will do no harm to your fish tank fish or plants. 【Exquisite and Vivid】Designed with delicate details, this ornament will definitely enhance your fish tank's visual effect. Offer a natural environment feeling and plenty fun to you as well as to your fish. 【Connect Air Pump】This treasure box ornament includes a air hose that can be connected to the valve or pump to make bubbles to get your ideal effects. The box lid can be opened and closed with the oxygen pump pressure. 【Perfect Aquarium Decoration】This aquarium ornament makes your tank more interesting and change your aquarium into a beautiful scenery.Hose Length: Approx. 10cm / 3.9inch。 Box Size: Approx. 6 x 4.5 x 3cm / 2.4 x 1.8 x 1.4inch