The Oriental Weavers Evolution 8049B Navy/ Blue Area Rug is a Machine Made, style Rugs made of Nylon/Polypropylene about 1/2 inch thick. The colors shown in photos may vary slightly from actual product. If color matching is critical, we suggest sampling a small size to test colors in your lighting. Rug measurements are approximate and can vary by up to 4 inches. Most rug images show a 5x8 rug size. Patterns might vary by size and designs are usually more elaborate in large sizes.