Check the listing for details. 3-D Aquarium Background ROCKY w/ FREE Clips -Choose Size 10 Gallon to 125 Gallon. Color: Brown, Condition: New. Listed at 55.99 USD. ROCKY 3D AQUARIUM BACKGROUNDFlexible, light weight and thin, (about 1/4" thick) the Rocky Background is ideal for any size tank. Made from a silicone material and then covered in real crushed rock. The flexible nature allows it to be installed in any tank including those with center braces without having to cut the background. Just fold it right into the tank.Using professional museum and aquarium display quality now you can create a stunning display right in your own home. By itself or with matching DecoRocks the Rocky turns an ordinary tank into a special aquarium you will be proud to show off. Comes with FREE (newer style) installation Clips CREATE YOUR OWN AMAZING DISPLAY Fabrication Made with real crushed rocks and oxidesFlexible materialNo need to cut into pieces to installWill last a lifetime Components Product can also be installed into filled & inhabited tanks. FEATURESFlexible light weight materialBackground sinks and doesn't floatEasy to installMatching DecRocks availableProfessional Aquarium display qualityEasy to clean with wire brush or power wash SIZES10 Gallon 20x12 15 Gallon 24x1220 High 24x1620 Long 30x129 Gallon 30x1830 Breeder 36 x 1240 Breeder 36x1655 or 75 Gallon 48x2090 Gallon 48x24125 Gallon 72x20