NativeStone® Shield penetrates concrete on a molecular level to create a protective, yet integrated barrier against stains and scratching. While all Native Trails NativeStone® products come pre-sealed, this exclusive sealer is now available for application on heavily used NativeStone® concrete sinks or bathtubs to ensure years of protection. Options: Special Features: This product will ship to you in one (1) box. Accessories pictured are NOT included.