The 4 in. x 12 in. Louvered Maple Wood Floor Register is an elegant addition to any home decor. The natural lacquered finish compliments any style while adding protection. The damper box is made from a high impact plastic, not metal which can rust and seize up. This is not a cheaper option, it's the best option. The register fits a 4 in. x 12 in. opening. Color: Natural Maple.