Xtra Stiff Back Knee Pad offers convenient way for note-taking even away from your desk. Extra-heavy chipboard backs (80 point) allows use on your lap or on-the-go. Smooth, 15 lb. paper is college-ruled with a red margin line. Sheets are microperforated for easy removal. Tear-out size is 8-1/2" x 11". The three-hole punched edge fits in standard three-ring binders. Each 100-sheet pad is stapled and taped along the top so it's easy to use for left-handed and right-handed note-takers.