Chocolate Brown Walnut Travertine Tumbled 12 x 24 x 1.25 Bullnose CopingChocolate Brown Walnut Travertine Tumbled 12 x 24 x 1. 25 Bullnose Coping is a premium natural stone edge piece designed to bring warmth, texture, and a finished look to outdoor spaces. Its walnut toned brown palette gives patios, pool areas, and spa surrounds a rich, grounded aesthetic that feels both timeless and upscale. The 12x24 format delivers a substantial visual presence, while the 1. 25 inch thickness helps the installation look solid and