Specially-designed for Boiler & Pressure Vessel Code sections.Black, suede-finish, high-density poly, custom 0.080-in. thickness; 5-prong, swivel-lock style metal hinge with locking bar and nickel plating; 3-in. capacity; transparent poly pocket on spine for ID label; gold ink on front and spine (Codes & Standards motif on front; ASME logo on front and spine)