Adhesive Peel-n-Stick Magnetic 3" Diameter Circles. Each circle is 30 mil in thickness with a strong indoor adhesive. Using a 3" magnetic adhesive circle opens up a range of possibilities for your creative projects. Here are some ideas on how you can make the most of it: Custom Magnets: Attach the 3" magnetic adhesive circle to the back of small decorative items, such as photographs, artwork, or cut-out designs. This instantly turns them into custom magnets that you can display on your refrigerator, magnetic board, or any other magnetic surface. Organizational Tools: Use the 3" magnetic adhesive circle to create handy organizational tools. For example, you can stick it to the back of small containers or jars to create magnetic storage solutions. Label the containers and attach them to metal surfaces like a filing cabinet or a whiteboard for easy access and organization. Classroom or Office Displays: Make educational or informative displays using the 3" magnetic adhesive circle. Print out information, diagrams, or charts, and attach them to a magnetic whiteboard or wall. This can be particularly useful in classrooms or offices where you want to showcase important information that can be easily updated or replaced. Party Decorations: Add a touch of creativity to your parties or events with the 3" magnetic adhesive circle. Create themed decorations or signs by printing out designs, attaching them to lightweight materials like cardboard or foam board, and then affixing the magnets to make them easily stick to metal surfaces. You can use them for photo booths, table numbers, or directional signs. Interactive Learning Materials: If you're an educator or have young children at home, you can create interactive learning materials using the 3" magnetic adhesive circle. Print out letters, numbers, or shapes, and attach them to lightweight magnetic materials like foam sheets or cardstock.