This Five Star® 5 Subject Notebook is compatible with the Five Star Study App, so you can easily scan, study and organize notes on your phone! Create instant flashcards and sync notes to Google Drive and access them anywhere. Notebook has 150 double-sided, college ruled sheets, which fight ink bleed, plus tough pockets that help prevent tears and hold 6" x 9 1/2" sheets. Durable plastic water-resistant front cover and Spiral Lock® wire binding help keep your notes safe and secure.