Raven Vinyl-Guarded Post BinderSafe, convenient and easy-to-use. Change paper quickly using the Toplock mechanism with slide button cover release. Black vinyl over stiff, heavyweight boards. Full-length metal hinge on both covers for added durability. Includes threaded top post and inner sections for up to 2" capacity. Holds specialty size sheets. Capacity Range [Max]: 2"; Color(s): Black.