Loose leaf paper+learning application, graphic straight line filling notebook paper, reinforced, anti ink leakage

By comparing the tensile strength of filler paper from an independent laboratory with that of leading reinforced filler paper manufacturers, we aim to double the strength of our leading competitors. Each pack has 80 loose-leaf graph ruled sheets of heavyweight paper that fights ink bd and provides a writing surface for your notes and homework. 4 squares per inch, i for graphing, charts and engineering projects. Our patented triangle-shaped holes turn easily along binder rings. Strong reinforcement tape helps resist tearing from rings.