The Classic 400 Curve Collection brings a modern appearance with additional bathing space to your home. Classic 400 Curve bathing systems offer style and design with the strength and durability of acrylic material. ProCrylic™ is a durable, bright white, high-gloss acrylic that provides all of the benefits of acrylic without the need for the rough, abrasive fiberglass backing. It is durable, easy to clean and resists mildew! Direct-to-stud installation helps to create a long-lasting and secure unit and since no mortar beds are required, you save time and money.