Deco-Replicas presents the Granite Aquarium Ornament & Hideaway 2 Piece Set (Small & Medium) by Penn-Plax. Although these items are not made from granite, they resemble the real thing. Not only does these pieces compliment the interior décor of many modern homes, they also serve as hideaways and swim-throughs for your fish. Perfect for cichlid tanks, since they?re territorial fish, and must create their own space. Easily Stackable: Our granite-like ornaments come in different sizes; 2 Piece Sets are offered in Small / Medium, and Large / Extra Large. Stack or arrange these stones however you?d like within your tank. The possibilities and combinations are endless! Super Simple to Clean: Simply wipe down and rinse off ornament with warm water when you are cleaning out your tank. Never use soap, as the residual soap particles can harm your fish. It?s safe for both freshwater and saltwater aquariums. Measurements: Small (2? x 2. 75? x 2. 5?); Medium (3? x 5? x 4. 75?). Shop Penn-Plax for All Your Pet?s Needs: Penn-Plax is a manufacturer and distributer of top quality pet supplies, who specialize in creating excellent pet products for animals, both great and small.