Bathroom: Get an 18″ bathroom toilet seat. Wipe clean: With a polyurethane finish for a smooth, easy-to-clean finish. Six colours: Choose from white, grey, black, antique pine, natural pine, or mahogany. Easy to fit: Comes with fittings for easy application. Durable: Features solid zinc hinges. Universal size: 18″ x 14.5″ x 2.5″.