Start the school year with mega-packs of Oxford loose leaf filler paper that give you 400 double-sided, graph ruled sheets | Standard 4 x 4 graph-ruled paper is a staple for elementary math, geometry, calculus, trigonometry, physics, and the arts | 8-1/2" x 11 Sheets are 3-hole punched to fit standard ring binders or pocket folders with fasteners | Quality binder paper will accommodate ink or gel pens and pencil; our subtle lines let your work stand out with minimal ink bleeding; proudly made in the USA | Stock up; our big packs of filler paper make it easy to shop ahead for the entire school year or replenish your teacher's supply as needed