PREMIUM MATERIALS: The castle aquarium decorations are made of environmentally friendly materials and non-toxic resin materials. Long-term immersion in water will not fade , will not affect water quality and will not cause harm to aquatic organisms. Exquisite Workmanship: The size of the resin aquarium ornament is 23 x 9.5 x 24cm, with beautiful shape and stable bottom, which can be easily and firmly placed in your fish tank. Wide range of applications: Castle aquarium decoration accessories are suitable for decorating glass containers, aquariums, as well as garden aquariums, fairy gardens, potted plant decorations and table decorations. PERFECT GIFT: If you have a friend who loves aquatic creatures, the castle fish tank decoration will be a great gift to beautify your fish tank and make it more interesting.