Easily write on post it page markers to add messages in notebooks textbooks planners and other documents. Use as a book page marker to quickly find your spot then remove page markers cleanly to avoid damage to books. sticky page markers are great to organize and plan your everyday life. They stick securely and remove cleanly. post-it page markers have bright vibrant colors. Post-it® Page Markers are recyclable and the paper is sourced from certified renewable and responsibly managed forests