Ampad will donate 4% of the proceeds to the National Breast Cancer Foundation. Smooth heavyweight 20-lb. paper. Microperforated for clean sheet removal. Backing: Chipboard 60 pt. Binding Edge: Top. Binding: Heavy-Duty Stapled. Lines Per Page: 28. Number of Sheets per Pad: 50. Pad Type: Ruled. Paper Color: Pink. Preprinted: Breast Cancer Awareness Pink Head Strip. Punched/Unpunched: Unpunched. Ruling: Legal. Sheet Perforation: Microperforated. Sheet Size: 8-1/2 x 11-3/4 .