Pattern: universal. Sheet size: 2-7/8" x 5", overall size: 3-1/2" x 5". Cover material: field-flex binding. Side perfect bound paper. 112 pages, 56 sheets, .15 lb. The paper-based stock is tough enough to withstand the harshest and wettestconditions, yet can be torn like heavy paper. It can be recycled with other papers. Perfect bound books are made by grinding the ends off folded sheets (called signatures) then gluing them to a cover stock. The text sheet edges are flush with the cover. Round-corners.