Size: 10.5*8.5*4.5 Inch Material: Resin To Your Aquariums, To Create A Nature Landscape Underwater And Also Help Make More Funs For Your Small Fish, Can Reduce Their Stress And Boredom In The Tank. It Is Vividly And Color Detailed To Add Lively And Natural Life To Your Tank. Flat Bottom To Have It Stand Easily And Steadily In Your Aquarium.

Put It Into Water And It's Done. No Further Maintenance Needed. Easy To Clean With Warm, Soapy Water And Rinse. Note: One Word Of Caution, Caves Do Need To Be Sanded Down Where They Are Sharp. I Do Recommend Letting It Soak In Warm Water For 30 Minutes To Release Any Debris Before Putting It Into Your Tank.