The Insulin Home Diabetic Chart and Diabetic Log Book helps you monitor your blood sugar levels at least 4 times a day (before and after meals, before bedtime and other readings) Keep all of your results in one place. Take and show to the doctor. (No more worries about forgetting the details.) The Diabetic Log is a great way to keep record of two of your most vital signs, blood sugar and blood pres sure. This large 8.5" x 11" book has plenty room to write plus its easy to read 90 Pages 1-15 Days/Page, 16-30 Days/Page