Amazon.co.jp: 3M Strong Adhesive Post-It Notes 3.0 x 1.0 inches (75 x 25 mm) : Office Products
Amazon.com : Post-it Transparent Notes, Clear Sticky Notes to Markup Textbooks and Planners Safely, Minimalist Aesthetic School Supplies for College Students, Stationery Artists, and More, 3x3 in, 12 Pads : Office Products