This set features one 60" x 39-1/4", one 60" × 25-1/4" back wall panel, and two 32-1/4 inch × 63-3/4 inch side panels in high gloss white finish. Each panel is 1-3/4 inch (44mm) thick. This 4-piece stud-in wall panel is specially sized at 60" high for seamless installation over standard bathtubs, offering a watertight fit with clean, modern lines.