SBC Vinyl Composition Covers - Letter Size Give your presentation an executive look with the SBC line of composition vinyl covers.  Conveying the look and feel of real leather, they make a powerful impact. All composition covers are packaged 100 pieces to a pack. 8-1/2" x 11", black, square corner, unpunched, no window *Note: Colors are a representation and may appear slightly different in person. Call our representative for a sample color swatch for an accurate color comparison. SBC Composition covers are a "green" product that can be recycled and are manufactured using 25% recycled material plus 10% post consumer waste.