Made of high quality silicone and plastic, soft and durable. Safe material that is not harmful to fish. Clean regularly after weeks or months of use. NOTE: The glow effect occurs under actinic lighting, giving your aquarium a fantastic seascape. Blue or violet light is recommended. Size: approx. 7 x 9 cm. The package includes: 1 artificial coral. Can be used in aquariums, gardens, courtyards, hotels and landscapes. Due to manual measurement, the product you receive may have a slight error in size < p>Due to different monitors, the product you receive may be slightly different from the picture Actual delivery quantity 1 piece