describe Product: aquarium warning decorative poster Weight: about 90g Material: resin Type: shark warning sign Size: 6.5x4.5x16cm characteristic Use environment-friendly resin materials, which are safe, non-toxic, easy to clean, easy to sink into the water without fading, making your aquarium more interesting. tidy 1 x Aquarium warning signs note 1. If you find any problems after receiving the product, please contact us in time. 2. Due to manual measurement, the size may have a 3-5mm error. Please understand.