Pack of 24 Roaring Spring Engineering Pads Measure 8.5" x 11", 100 / 200 pages sheets of 15# buff bond paper Paper is plain, except for printed outline box on top of sheet, and has 5 square/inch grid layout printed on back of sheet Back grid shows through to front as dimensional guide for drawings and layouts Proudly made in USA! Roaring Spring has been producing paper products for more than 130 years Pads are glued along the top edge and 3-hole punched to fit in standard 3-ring binder