SODIAL(R) Decoration Plastic Simulated Sea Plants Flora for Aquarium Fish Tank purple They are featuring plastic construction with oval ceramic bases,so they will stay where they placed in the tank These aquarium ornament decor are enhance visual appeal and to provide shelter for your fish Suitable for both fresh and salt water,durable,fade-resistant,no-toxic and easy for daily washing Absolutely safe for fish and best of all,they won't die,rot or cause any algae problems Material:plastic+ceramic; Overall size:approx 7x10cm/2.8x3.9inches(LxH)