70 g/m2 paper stock graded to resist ink bleed-through for use on both sides with clean note-taking that lasts all year Fine micro-perforation for tearing sheets out flawlessly. Tear-out sheets are 3-hole punched to store in a binder Built strong with quality cardstock covers and a solid wire-bound spiral that keeps notebook together Responsibly sourced paper that helps save the planet’s forests Writing sheet size 10.5” x 7.5", college-ruled spacing 9/32”, 70 double-sided sheets per spiral notebook – pack of 5 Upgrade Notes Spiral Notebooks feature quality paper in 70 g/m2 that resists ink bleed for clean note-taking on the front and back of the pages. It is built strong with quality cardstock covers to protect your notes. The back cover is of the same cardstock quality and printed as the front cover. The overall sheet size is 10.5” x 8”, and it is 3-hole punched to store the notebook in a binder. The sheets are finely micro-perforated to remove individual pages without paper tearing. The size of the micro-perforated sheet, which is the writing space, is 10.5” x 7.5”. It is ideal for school (K-12 and college), office, journaling, or personal use. The set includes five (5) spiral notebooks, each with 70 college-ruled sheets (9/32” space between lines). Each notebook is a different color: Black, Blue, Red, Green, and Yellow. The origin of the paper matters to protect the environment. We use only paper from certified mills that guarantee the paper comes from a renewable source.