The Penn Plax Three Piece Grey and Tan Striped Rock Kit is the easiest way to add a natural element to your aquarium. Simply add a few Penn Plax plastic plants to the edges of the rocks and you will have a natural looking habitat for your fish in no time at all.This 3-piece set has the realistic look of various sizes rocks with a unique shape in natural color shades. The pieces are also finely-detailed with realistic looking stripes and layers.These aquarium ornaments serve two purposes, to add visual interest for humans but also acts as pass throughs for your fish. These stone replicas are perfect for cichlid tanks since this fish is territorial and must create their own space.These aquarium ornaments are made of quality resin and come with one large sized rock and two smaller sized rocks in the set. These ornaments are free-standing and double sided so they can be placed anywhere in your fish tank. Pair this set with other rocks to create a larger display.Coordinate these rocks with other aquarium decorations and plants to create a complete environment for your fish tank.