AT-A-GLANCE Large Daily Desk Calendar Refill (E21050) Desktop calendar refill helps you stay on top of events and appointments 12 months, January-December; 4.5 x 8 inch pages size; Julian dates Two-ring binding; fits AT-A-GLANCE 21-Style Calendar Base E21-00 (base not included) Quarter-hourly appointments, 7 a.m.-5:15 p.m.; two pages per weekday; Saturday and Sunday combined One day per two-page spread; Saturday and Sunday combined Gently realigns the vertebrae Eases upper back pain and neck pain Corrects posture and restores healthier stature Reduces slouching and hunching by retraining back muscles Aids recovery and prevents further damage to your spine Comes with a latex resistance band for strengthening exercises