Karen Low Aquarium Resin Barrel Ornament Fish Tank Cave Landscaping Decorations Made of resin, safe for your fish and non toxic. Suitable for aquarium, fish tank, for nitrification bacteria provide places. It provide a place for fish to spawning and breeding. Also provides shelter, hiding spots for your fish, Beautiful shape, unique design, realistic image Dimensions: 9 x 6 x 7 cm. / 3.5 x 2.4 x 2.8 Inch