These decorative plastic rocks are a light weight alternative to real stones. Save your back, time and money with fake rocks made of recycled plastic. Perfect for water walls and fountains as these stones float to cover up dirt and debris that float on the top of an otherwise beautiful water feature. Cover more square footage with our flat, river stone design. Our poly-molded pebbles save you time from cleaning up after messy top dressings such as Spanish moss or American Moss by Fiberex.