This Comfort Seats EZ Close round white toilet seat comes with an adjustable designer chrome hinge. It is strong and durable with injection molded high impact chemically resistant polypropylene. It comes with a Comfort Seats EZ Close damper system. It has a comfortable, ergonomically designed ring and is extra thick to provide greater support. The hardware is durable and rust free and comes with molded-in bumbers for added safety and comfort. The rubber hinge pads keep the seat secure and stable. It has easy, self-aligning top mount installation with just a screwdriver. The hinge is adjustable for a perfect fit on any standard toilet bowl.