CALI Shorebreak Tiburon Marble 0.47 in T x 1.73 in W x 72.83 in L Vinyl Threshold Steel Storage meaning fixture qualifies for utility Color:Black (Textured Finish) meaning fixture qualifies for utility energy rebates and passes the most stringent quality demands no MDF or particle board Ash veneer adds texture and decorative touch to the cabinet Backsplash not included English dovetail drawer construction Full corner block on all corners for stability Interior adjustable shelf for storage Hand applied with multiple layers of eco friendly stain and top coat to prevent pealing Elevate your flooring with the CALI Shorebreak Tiburon Marble Vinyl Threshold Q: What material is this threshold made from