Our resin castle decorations is made of environmental protection resin material.safe and non-toxic and non-pollutant fish tank castle decorations,It doesn’t pose harm to your aquatic animals nor create any ill impact on water quality. perfect for all in medium&large size freshwater&saltwater aquariums. The resin castle fish tank unique structure design, Vivid colors description and realistic image make the decorations look beautiful and elegant.Also it looks more brighter and colorful underwater.Fish can in the castle clearance swim shuttle back and forth provides shelter, hiding spots, entertainment venues for the fish,which will become the unique scenery of the home. Specifications: Color: As picture Material: Natural Resin Size Approx: 9.1x3.6x10 inches(LxWxH) Weight Approx.:1.3 lb Package includes: 1 x Resin Castle Driftwood 2 x Artificial Aquatic Plants Cleaning Tips: 1.Please soak for 10-15 minutes with water before applying wipe off the dust and paint smell. 2.There is no need to clean the resin ornament too often, they won't die, rot or cause any algae problems. Notice: 1.Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the product. Thank you! 3.Please confirm the size before your ordering!