Calendar base with organizer holds 17-style or standard, loose-leaf flip-page calendars punched with two holes. Calendar refill is sold separately. Base is angled for easy reading and writing. Rear compartments accommodate pencils, pens, markers and pads. Side compartments are small enough to hold paper clips, keys and pushpins. Organizer/base is equipped with rubber feet on the underside to protect desk surface. It is made of high-impact, molded plastic..