The NPT BBMBC162438 is 16" x 24" x 1-1/4” Bella Blue Marble Brushed Finish Bullnose Coping. Bullnose coping provides a smooth surface and acts as a great finishing accent. The rounded edge finish is perfect for outdoor pools and decorative landscaping. This type of coping leaves a softer look and feel around the pool. It is a genuine NPT product.