Business Source Wirebound Memo Book, End Spiral, 4" x "6, 40 Sheets, WE (BSN10970) Box of 12Wirebound Memo Book features a rigid chipboard cover, wire binding at the top, and white paper with narrow, faint blue, 1 4" ruling. Book has 40 sheets. General Information Manufacturer: Business Source Manufacturer Part Number: 10970 Brand Name: Business Source Product Name: Wirebound Memo Books Marketing Information: Wirebound Memo Book features a rigid chipboard cover, wire binding at the top, and white paper with narrow, faint blue, 1 4" ruling.