Comfort Seats C1B3R3-01 Deluxe Plastic Contemporary Toilet Seat, Round, Bone Strong and durable - injection molded of high-Impact, chemically resistant polypropylene Ergonomically designed for comfort and quality Seat bumpers are "Molded-In" for extra strength and durability, never need replacing Ultra-Violet Protection Molded into each seat to prevent color fading Simple to install - only requires a screwdriver, adjustable hinges for perfect fit, corrosion proof, self-aligning hardware