BookFactory Maintenance Log Book - 120 Pages, 3 1/2" x 5 1/4", Black Imitation Leather Cover, Smyth Sewn Hardbound (LOG-120-M3CS-A-LKT30-(Maintenance)) Hardbound book with black imitation leather cover and flexible square spine Smyth sewn  books lays flat when open Archival quality, acid-free paper Page Dimensions: 3 1/2" X 5 1/4" Features a Detailed User Data Page for all Equipment and Location Information