R-Zilla decor pebble rock re-create the geology of the water"s edge. Seeking a true-to-life environment for frogs, turtles and other aquatic reptiles. Set a pebble rock between the water and shore and provide both a picturesque setting and a healthy place for numerous reptiles to hide. Desert terrariums can also benefit from the authentic look of weathered stone. Superior to natural rock, pebble rock has a non-porous exterior finish that cleans quickly and easily with warm soapy water. This inert man-made material will not change the mineral balance of nearby water. Available in x-large size. Measures 17-1/2-inch length by 8-inch width by 16-3/4-inch height.