These Bi-Office 10mm round magnets are designed for use on whiteboards, magnetic notice boards, and other metallic display surfaces. Each magnet features a compact 10mm diameter, making them suitable for securing notes, memos, charts, and schedules in office or home environments. This pack contains 10 black magnets, providing a reliable way to organize and display documents clearly. Their simple design ensures they hold paper firmly against magnetic surfaces without obstructing the content being pinned.