Post-it® Pop-up Notes measuring 3 inches by 3 inches are made specifically to fit into Post-it® Pop-up Note Dispensers. You'll always have a note handy to jot down brilliant ideas with these notes. This special adhesive is made to function with planners and paper. Use for memos or self- or other-reminders. A note that is canary yellow will stand out more. Each pad contains 100 sheets.