Fabrikoid Universal Hard Cover Book - 4.25'' x 6.75''Fabrikoid cover Numbered pages & reference Sewn in pages Sheet size: 3. 75'' x 6. 5'' This durable and regal fabric cover endures the onslaught of the elements as well as the slow, insidious passage of time. Numbered pages help optimize your data collecting, rulers, conversion charts, and map scales prove handy in the field. Built to withstand the test of time, these case bound books have secure sewn in pages which lay flat when open.