Constructed of durable rubberwood Long-lasting piano finish is fully sealed with high gloss polyurethane Brushed Nickel metal hinges Two bumpers on ring for stability Corrosion resistant plastic mounting hardware Hand-Selected premium grade wood for beauty and durability Factory installed hinges ensure perfect alignment between the cover and seat Simple to install, corrosion proof, self-aligning hardware Stainless Steel hinge screws eliminated rust Multi-coat surface finish provides a beautiful, long-lasting and durable finish